Forum:Gladiator Beast effect

hi, i was wondering if som1 could help me out on this. You see I just made me my new Gladiator Beast deck and I had a qeustion about it. you see when a Gladiator beast is attacked or attacks it can return to your deck to special summon another one. so here's the scenario:

player A's blue eyes white dragon attacks my darius (1700/300) normally it is destroyed, but here is my qeustion: Does my Darius return from the grave to my deck or does it stay? and can or can't I then special summon a monster

Thx.