urza card mtg Urza, Lord High Artificer Print Tap an untapped artifact you control Urza, Lord High Artificer ARTIFACTS

Zidane's treasure-making effect encourages you to play cards that change controllers, while his ETB, temporarily nicking another creature, pulls you into theft effects

Unnatural Selection If you're interested in changing specific Creatures and not altering every single one you control, you could explore Unnatural Selection

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Strax, Sontaran Nurse Strax, Sontaran Nurse loves fighting other creatures on opponents battlefields to pump itself up when you sacrifice an artifact

However, Tower Defense has really snuck under the radar of a lot of players, and it's essentially a +5/+5 pump spell for the crew for just two mana if you're attacking