Yuga vs Gavin: A Yu-Gi-Oh Rush Duel

You can't Tribute Summon? Just Special Summon.

Yamiruler the Dark Delayer
[REQUIREMENT] During the turn you Normal Summoned this card, change its battle position (Attack Position becomes face-up Defense Position, Defense Position becomes face-up Attack Position).
[EFFECT] Until the end of the opponent's next turn, while this card is face-up, neither player can Tribute Summon Level 7 or higher monsters.

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