Forum:Gladiatorbeast War Chariot

I've got Gladiator Beast Bestiari on the field, Gladiator Beast War Chariot set and I end my turn. My opponent runs a Zombie Deck - he special summons Kasha ---> the question is if I can negate Kasha's effect with Gladiator Beast War Chariot? (Because when Kasha is special summoned it returns all monsters on the field to their owners deck)