Multiattack

The firegeist makes two slam attacks.

Slam

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) bludgeoning damage.

Combustion Touch (Recharge 5-6)

The firegeist may ignite a target when making a slam attack. The target must immediately succeed at a DC 13 Dexterity saving throw or catch fire, taking an additional 5 (1d10) fire damage at the beginning of its next turn. Until someone takes an action to douse the fire, the creature takes 5 (1d10) fire damage at the start of each of its turns.