Cards that care about discarding, like Waste Not, only work with effects that explicitly discard a card from somebody's hand
I wouldnt say that this means the end for Blastoise, or anything even close, but Blastoise fanboys have been attacking this deck to make themselves feel better, and I dont see the need for hate
Riot MTG Mechanic A creature with riot enters the battlefield with a +1/+1 counter on it or with haste, its controller's choice
That said, its not the place for high-value items , and buyer trust is still growing
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