Forum:Phantom + World

If I summon Phantom of Chaos and call priority to use its effect to copy a card like Armageddon Knight or an Arcana Force monster will Phantom of Chaos get their effect from being normal summoned or is the timing off?

Example: I normal summon Phantom, call priority to remove Arcana Force from graveyard, Phantom gets the Arcana ability to flip a coin because this all triggered as Phantom was normal summoned.