He will emote for his Homing fireball attack. The attack shows fire on the ground around the character indicated, and it will track only that character. You can move away from the group to prevent large damage to your buddies.
https://everquest.allakhazam.com/db/spell.html?spell=45583
Edit: Max hit on my Paladin 47k. Discipline of flame had about 55m HP.
Edited, May 24th 2019 3:13am by proslackernifty