Hammer Bounzer

If your opponent controls a card and you control no cards, you can Normal Summon this card without Tributing. If this card attacks an opponent's monster, as long as you control no Spell/Trap Cards, your opponent cannot activate any Spell/Trap Cards until the end of the Damage Step.

From Yu-Gi-Oh! Trading Card Game.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6npg00329qsb1i65c80yza.