(If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.) Each creature you control with a +1/+1 counter on it has trample
This is done by giving them a new attack or a new ability
Wizards has even gone so far as to capture a little bit of that Brothers Yamazaki feel by giving us pairs like Breeches, Brazen Plunderer and Malcolm, Keen-Eyed Navigator that are left open ended, just in case youd rather use Ghost of Ramirez DePietro with one of them instead
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It is a Continuous Trap that prevents both you and your opponent from performing more than two Summons per turn
Unfortunately, not everyone is a fan of them, especially for opponents who run copy decks