Gladiator's Assault!
Quick-Play Spell
Double the ATK of all face-up "Gladiator Beast" monsters on your side of the field. Negate those monsters' effects. During the End Phase of this turn, return all monsters affected by this card to their owners' Decks.
Next: Evil Hero Necros or Stone Soup Pot
EDIT: or as THEY seem too tough for others to handle, try "Path to Victory" or "Cyber Frog"
Quick-Play Spell
Double the ATK of all face-up "Gladiator Beast" monsters on your side of the field. Negate those monsters' effects. During the End Phase of this turn, return all monsters affected by this card to their owners' Decks.
Next: Evil Hero Necros or Stone Soup Pot
EDIT: or as THEY seem too tough for others to handle, try "Path to Victory" or "Cyber Frog"