Forum:Trap of the Imperial Tomb vs Red-Eyes Zombie Dragon etc

Suppose Zombie World is active. Player A has the Zombie World, a Red-Eyes Zombie Dragon, and has a Trap of the Imperial Tomb face-down. Player B has a face-up Armageddon Knight and 2 face-down monsters. Player A attacks with REZD the Knight, and activates REZD's effect, so a Zombie (the Knight) is special summoned to his side of the field from the opponent's graveyard. My question is, can he then activate Trap of the Imperial Tomb, or does REZD's effect activate in the Damage Step, so Trap of the Imperial Tomb can't be activated? --Darth Covah 19:11, 14 January 2009 (UTC)