Coup de Grâce

NightshadeDebuffCombatTier 524Scales with Spell Power

Coup de Grâce is a tier 5 Nightshade combat spell. Its numbers below are read from the current game build at each of its four levels.

Generated from the game files · build 25672315 · 10 Oct 2026

Cost to learn

101010

Alchemical Dust, spent at the Magic Observatory — it raises each spell one level, once

Levels 2–425each

The game states the formula and never the result — drag to see the numbers

At Spell Power15

050

Duration

[ 1 + 1 per every 8 hero’s Spell Power ] · next at 16 Spell Power

2rounds

Every value is one the game itself prints in its level-up notes

Property	Level 1	Level 2	Level 3	Level 4
Stack size	20%	25%	35%	35%

Level 1Base

Target enemy creature will die after taking any Damage if its stack size is lower than or equal to 20% of its original number.

Level 2Stack size 20%→25%

Target enemy creature will die after taking any Damage if its stack size is lower than or equal to 25% of its original number.

Level 3Stack size 25%→35%

Target enemy creature will die after taking any Damage if its stack size is lower than or equal to 35% of its original number.

Level 4Affects all enemy creatures.

Targets all enemies. Each will die after taking any Damage if its stack size is lower than or equal to 35% of its original number.