Summon Over

Each time a monster(s) is Special Summoned, place 1 Summon Counter on this card (max. 6). This card with 6 Summon Counters cannot be destroyed by card effects. At the start of each Main Phase 1, if this card has 6 Summon Counters: The turn player can activate this effect; they send this card to the GY, and if they do,

they send all Special Summoned monsters their opponent controls to the GY.

From Yu-Gi-Oh! Trading Card Game.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6nt1lj61twsb1iylap72lk.