From Dota 2 Wiki
Main Article: Warlock
- Permanent Immolation is an aura. The debuff lingers for 0.5 seconds.
- Deals damage in 1 second intervals, starting 1 second after the debuff is placed.
- Can deal up to 1800/3000/4200 damage to a single unit (before reductions) when it stays within range for its whole duration.
- Permanent Immolation of multiple golems fully stacks with each other.
- Only unlocked when the right level 25 talent is chosen.
- The spell immunity is gained through a permanent status buff, instead of an ability.