mtg cards like grave pact Magic: The Gathering Price Guide each other player sacrifices a creature. Magic the Gathering - Grave

Walking Ballista will almost always start with at least the minimum two counters it needs to perform the loop, but might be larger in a longer game

Illustrated by Dimitar Marinski Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp

Several of them were one or more colors and had enters effects, with one, Universes Beyond also makes heavy usage of Vehicles

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And it makes for great stories, especially if you, say, come back from having all your Plains blown up

I wish it would force everyone to discard instead or just be three mana or have a bigger body for four mana