Powers

Powers, also known as passive upgrades, are gameplay enhancements acquired throughout a run in Soulstone Survivors. They allow players to improve core stats, such as damage, movement speed, or critical chance, while also introducing new mechanics like applying negative effects on hit, gaining self buffs, or modifying the stats of specific skills.

Each Power is categorized by its rarity: Common, Uncommon, Rare, Epic, Legendary, or Special. Higher rarities typically provide stronger or more complex bonuses. While most Powers are obtained by leveling up during a run, the exclusive Special rarity powers are granted through specific conditions, such as defeating a Titan in Titan Hunt or completing a cycle in the Unholy Cathedral; these often grant unique bonuses not available through normal level-up options. Regardless of their source, Powers stack unless otherwise stated, and this combination of stacking and synergy allows for the creation of extremely diverse and potent builds.

Powers also play a critical role in scaling character strength during Ascension. Many Ascension Abilities gain increased effectiveness when supported by complementary Powers.

If the player has unlocked Reroll charges, they can shuffle the set of offered Powers before picking. Banishes allow permanently removing unwanted options from appearing again in a run, regardless of its rarity. Locks enable preserving a desired Power for the next level-up.

Power mechanics

How powers are generated

When a Power is granted, the game first determines the rarity of the Power using predefined probabilities. For level-up rewards, this rarity roll follows a weighted system, favoring lower rarities more frequently. Once a rarity is rolled, the game selects a Power from that rarity's pool.

Within each rarity tier, all available Powers are equally weighted, meaning each Power has the same chance of being picked. The system does not prioritize any particular upgrade over another within the same rarity.

Special rarities bypass the standard roll and directly offer fixed Special Powers instead. Players cannot lock or banish Special powers.

Rarities

The weight of each rarity is defined as:

Common	Uncommon	Rare	Epic	Legendary
50	25	12	4	1

• Default
• Quality Standards
• Commoner
• Both

In default case, without having equipped any runes, these are the probabilities of specific rarities to be rolled:

Rarity	Single Card	At least One in 3 Cards	All 3 Cards of Same Rarity	Best Rarity Rolled
Common	54.35%	90.50%	16.01%	16.01%
Uncommon	27.17%	61.39%	2.01%	38.89%
Rare	13.04%	34.18%	0.22%	33.82%
Epic	4.35%	12.67%	0.0083%	8.05%
Legendary	1.09%	3.23%	0.00012%	3.23%

Conditions

While Power rarities are rolled independently of content, specific Powers only become eligible based on your current build. The game checks for conditional requirements, such as debuff applications, skill types, or active buffs, before allowing certain upgrades to appear. This ensures that Powers offered are relevant to the player's current combat style and synergy path.

Below are known conditional rules, where the sources are either from active skills or from one of the powers:

Condition	Requirements	Applications
Buff Synergy (A → B)	2 sources of Buff A	Unlocks next buff synergy in the chain: Finesse → Bulwark → Aptitude → Prowess → Resilience → Form → Haste → Finesse
Skill Chain (Type A → B)	2 skills with Type A. Skills with base cooldown greater than 8s are excluded.	Applies to all primary skill types. (e.g., Swing → Thrust).
Type A to Non-Type A Buffs	2 skills with Type A and 2 skills without Type A	Applies to all skill types within the same category (e.g. Fire, Area, Physical).
Debuff Synergy (A → B)	2 sources applying A	Unlocks next debuff synergy in the chain: Burn → Slow → Disarray → Bleed → Poison → Doom → Burn
Chance to Apply A on Hit	1 source applying A	Burn, Slow, Disarray, Bleed, Poison, Doom
Chance to Apply A on Crit	2 sources applying A	Burn, Slow, Disarray, Bleed, Poison, Doom
Instant Damage When Applying A	3 sources applying A	Burn, Poison, Bleed, Doom
Increase Damage of A	3 sources applying A	Burn, Poison, Bleed, Doom
Increase Tick Rate of A	3 sources applying A	Quicken tickrate like Elemental Flow for Burn, Poison, Bleed

Generic powers

These powers always show up in any circumstances, mostly provide stat boosts for the character.

Icon	Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
	Powerful Strikes	You cause more damage.	Damage Modifier	+5%	+10%	+15%
	Leviathan	You cause more damage but move slower.	Damage Modifier	+10%	+20%	+30%
			Movement Speed	-5%	-10%	-15%
	Relentless	You use skills more frequently.	Cast Frequency	+5%	+10%	+15%	+20%
	Expansive	Your attacks have greater area of effect and bigger projectiles.	Area Modifier	+5%	+10%	+15%	+20%
	Multi Cast	You may now activate your skills multiple times at once.	Multi Cast Chance	+4%	+8%	+12%	+16%	+20%
	Lethality	Your chance to cause critical damage is increased.	Critical Chance	+4%	+8%	+12%
	Merciless	Your critical strikes cause additional damage.	Critical Damage	+12%	+24%	+36%
	Behemoth	You have more health.	Max Health	+15	+30	+45
	Resilient	You armor is improved.	Armor Power	+8	+16	+24
	Indomitable	You chance of blocking attacks is increased.	Block Power	+4	+8	+12
	Agile	You move faster.	Movement Speed	+10%	+20%	+30%
	Magnetic	You gain more experience, and can collect experience crystals from a greater distance.	Experience	+10%	+20%	+30%
			Pick Up Area	+50%	+100%	+150%
	Unbreakable	All damage received is reduced by a flat amount.	Damage Reduction			-2
	Vicious Strikes	You have 100% chance to deal a critical strike on enemies with full health.				+
	Swift	You can dash multiple times.					+1

Status effects

Certain powers allow players to apply damaging status effects such as Burn, Bleed, Poison, Doom, and others. These powers may trigger on hit, on critical strike, or upon applying another status effect, depending on the upgrade card's rarity.

One important aspect to note is that the number of stacks applied by a power is determined by the type and rarity of the powers:

• Common powers that apply effects "on hit" typically apply 2 stacks.
• Uncommon doubles both the effect strength and number of stacks.
• Rare powers that apply effects "on critical strike" usually apply 2 stacks.
• Rare synergies generally apply 2-3 stacks, and may trigger multiple times if the base effect (like Burn) is applied from different sources simultaneously.

The number of stacks is not affected by any damage modifiers, critical hits, or tick rate changes. Only upgrades or effects that explicitly say they increase "chance to apply" will do so.

While in-game tooltips often display a single total damage value (e.g., " Burn +180 damage"), this number represents the combined total from multiple stacks. For instance, "+180 Burn damage" usually indicates that 2 stacks of Burn are applied. So when planning your build, focus on whether the stack counts if go for the scaling skills based on the numbers of stacks, or total damage if go for the instant percentage damage removal skills.

Damaging negative effects

Icon	Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
	Blood Shed	All your attacks may now apply Bleed.	Chance	25% (fixed)
			Bleed | Total Damage	+120 (+2)	+240 (+4)
	Brutal Strikes	Your critical strikes may now apply Bleed.	Chance	50% (fixed)
			Bleed | Total Damage			+280 (+2)
	Laceration	Increases the damage of every Bleed you apply.	Damage	+30%	+60%
	Dismemberment	Whenever you apply Bleed, a portion of the total damage is caused instantly, in addition to the normal effect.	Amount				+40%
	Deep Wounds	Bleed now causes damage more frequently.	Frequency			+30%
	Venomous	All your attacks may now apply Poison.	Chance	25% (fixed)
			Poison | Total Damage	+120 (+2)	+240 (+4)
	Infected Wounds	Your critical strikes may now apply Poison.	Chance	50% (fixed)
			Poison | Total Damage			+240 (+2)
	Corrosive	Increases the damage of every Poison you apply.	Damage	+30%	+60%
	Rotting	Whenever you apply Poison, a portion of the total damage is caused instantly, in addition to the normal effect.	Amount				+40%
	Death and Decay	Poison now causes damage more frequently.	Frequency			+30%
	Fateful Strikes	All your attacks may now apply Doom.	Chance	25% (fixed)
			Doom | Total Damage	+120 (+2)	+240 (+4)
	Grim Precision	Your critical strikes may now apply Doom.	Chance	50% (fixed)
			Doom | Total Damage			+240 (+2)
	Calamity	Increases the damage of every Doom you apply.	Damage	+30%	+60%
	Ruin	Whenever you apply Doom, a portion of the total damage is caused instantly, in addition to the normal effect.	Amount				+40%
	Spontaneous Combustion	All your attacks may now apply Burn.	Chance	25% (fixed)
			Burn | Total Damage	+180 (+2)	+360 (+4)
	Ignition Point	Your critical strikes may now apply Burn.	Chance	50% (fixed)
			Burn | Total Damage			+360 (+2)
	Fiery Amplification	Increases the damage of every Burn you apply.	Damage	+30%	+60%
	Incinerate	Whenever you apply Burn, a portion of the total damage is caused instantly, in addition to the normal effect.	Amount				+40%
	Intense Fire	Burn now causes damage more frequently.	Frequency			+30%

Debuffs

Icon	Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
	Horrific Presence	All your attacks may now apply Disarray.	Chance	10% (fixed)
			Disarray | Extra Damage	-0.5% ↔ 2.5% (+1)	-1.0% ↔ 5.0% (+2)
	Havoc	Your critical strikes may now apply Disarray.	Chance	50% (fixed)
			Disarray | Extra Damage			-0.5% ↔ 2.5% (+1)
	Touch of Ice	All your attacks may now apply Slow.	Chance	40% (fixed)
			Slow | Intensity	+2% (+2)	+4% (+4)
	Immobilize	Your critical strikes may now apply Slow.	Chance	50% (fixed)
			Slow | Intensity			+2% (+2)

Effect synergies

Icon	Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
	Agony	Whenever you apply Disarray you may now apply Bleed as well.	Chance	50% (fixed)
			Bleed | Total Damage			+360 (+3)
	Poisonous Blood	Whenever you apply Bleed you may now apply Poison as well.	Chance	50% (fixed)
			Poison | Total Damage			+300 (+3)
	Debilitating Plague	Whenever you apply Poison you may now apply Doom as well.	Chance	50% (fixed)
			Doom | Total Damage			+300 (+3)
	Impending Doom	Whenever you apply Doom you may now apply Burn as well.	Chance	50% (fixed)
			Burn | Total Damage			+450 (+3)
	Thermal Shock	Whenever you apply Burn you may now apply Slow as well.	Chance	50% (fixed)
			Slow | Intensity			+2% (+2)
	Hypothermia	Whenever you apply Slow you may now apply Disarray as well.	Chance	50% (fixed)
			Disarray | Extra Damage			-0.5% ↔ 2.5% (+1)

Buff synergies

Icon	Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
	War Experience	Every time you apply Finesse, you have a chance to gain Bulwark.	Chance	25% (fixed)
			Bulwark | Block Power			+1% (+1)
	Shredding Armor	Every time you apply Bulwark, you have a chance to gain Aptitude.	Chance	25% (fixed)
			Aptitude | Critical Damage			+2% (+1)
	Devastating Strike	Every time you apply Aptitude, you have a chance to gain Prowess.	Chance	25% (fixed)
			Prowess | Damage Modifier			+1% (+1)
	Fortifying Damage	Every time you apply Prowess, you have a chance to gain Resilience.	Chance	25% (fixed)
			Resilience | Armor Power			+1% (+1)
	Armored Assault	Every time you apply Resilience, you have a chance to gain Form.	Chance	25% (fixed)
			Form | Critical Chance			+1% (+1)
	Lethal Celerity	Every time you apply Form, you have a chance to gain Haste.	Chance	25% (fixed)
			Haste | Movement Speed			+1% (+1)
	Adrenaline	Every time you apply Haste, you have a chance to gain Finesse.	Chance	25% (fixed)
			Finesse | Multi Cast Chance			+1% (+1)

Skill-related powers

Skill-specific powers

Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
Damage Increase	Increases the damage modifier of the skill SKILLNAME.	Damage Modifier		+30%	+45%
Critical Chance	Increases the critical chance of the SKILLNAME skill.	Critical Chance		+24%	+36%
Attack Speed	Increases the cast frequency of the skill SKILLNAME.	Cast Frequency		+20%	+30%
Area Modifier	Increases the area modifier of the skill SKILLNAME.	Area Modifier		+20%	+30%
Multi Cast	Increases the multi cast of the skill SKILLNAME.	Multi Cast Chance				+48%	+60%
Increased Quantity	Increases the maximum active units and quantity of units summoned by the skill SKILLNAME.	Quantity				+1	+2
Increased Duration	Increases the duration of the skill SKILLNAME.	Duration			+30%	+40%
Increased Potency	Increases the potency of the buff from the skill SKILLNAME.	Potency		+30%	+45%

Skill type specific powers

These power-ups can only appear if the player has at least 2 skills of the same typing within the active slots.

Primary types

Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
Damage Increase	Increases the damage modifier of all your skills of type PRIMARY_TYPE. If a skill does not cause damage, the potency of its effect will be increased instead.	Damage Modifier			+30%
Area of Effect	Increases the area modifier of all your skills of type PRIMARY_TYPE, which increases the area of effect and also the projectile size of said skills.	Area Modifier			+30%
Multi Cast	Increases the multi cast chance of all your skills of type PRIMARY_TYPE.	Multi Cast Chance			+24%

Extra types

Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
Damage Increase	Increases the damage modifier of all your skills of type EXTRA_TYPE. If a skill does not cause damage, the potency of its effect will be increased instead.	Damage Modifier				+40%
Area of Effect	Increases the area modifier of all your skills of type EXTRA_TYPE, which increases the area of effect and also the projectile size of said skills.	Area Modifier				+40%
Multi Cast	Increases the multi cast chance of all your skills of type EXTRA_TYPE.	Multi Cast Chance				+36%

Damage types

Name	Description	Stat(s)	Common	Uncommon	Rare	Epic	Legendary
Damage Increase	Increases the damage modifier of all your skills of type DAMAGE_TYPE. If a skill does not cause damage, the potency of its effect will be increased instead.	Damage Modifier					+50%
Area of Effect	Increases the area modifier of all your skills of type DAMAGE_TYPE, which increases the area of effect and also the projectile size of said skills.	Area Modifier					+50%
Multi Cast	Increases the multi cast chance of all your skills of type DAMAGE_TYPE.	Multi Cast Chance					+48%

Skill chain

Main article: Skill Chain

Ascension powers

Main article: Ascension

These powers only show up for selection after a character has unlocked their Ascension ability. This crucial unlock occurs upon reaching Prestige 20 with a specific character. These powers are typically character-specific and provide significant enhancements, allowing for further specialization and empowerment of builds in the late game.

See also

• Status Effect
• Characters