Forum:Gorz and Bottomless?

Okay, so I was dueling with one of my friends, and he summoned Gorz. My question, is could I activate Bottomless Trap Hole to destroy Gorz or the Token that he summoned with Gorz' effect?

I have looked everywhere, and I can't find what step Gorz is summoned in, my friend says it's the damage step, but I seriously doubt that seeing as you have to finish taking the damage to summon Gorz and use his effect to summon the token. Please help TT_TT