This is the macro for one shot when in big raid groups!

/cast Presence of Mind
/use Smokey's Lighter
/use Limited Invulnerability Potion
/cast Arcane Power
/cast [@player] Dense Dynamite
/castsequence [@player] Flamestrike, Arcane Explosion, Arcane Explosion, Arcane Explosion, Arcane Explosion


You can replace pot or trinket with any other trinket. It works amazing!