gyarados pokemon card full art Water / 240 / Mega Attack 1 2021 Pokemon Japanese SWSH Blue

My gut tells me that it's unplayable since even though it can mess up an opponent's combat step, you need a really specific graveyard for it to do anything reasonable

Pretty strange for a Teferi card though, who now has a solid Knight tribal effect apart from his usual control shenanigans

The creature token can be sacrificed for immense value, even enabling an infinite combo win

With that loop in place, you can replay Strip Mine every turn to gradually dismantle an opponents mana base until casting spells is no longer an option

Trash the Town

The Grim Captain's Locker can let you cheat the mana cost on creature cards in your graveyard, casting something absurd like Atraxa, Grand Unifier from your graveyard for only 4 mana