urza mtg card Urza, Lord High Artificer ARTIFACTS Affinity Metalcraft Magic Commander Deck Human Artificer Urza's Saga (Mystery Booster 2)

It also has its bigger brother and my honourable mention

Jiminy Cricket, Pinocchios Conscience, also has the Evasive ability, which keeps him useful beyond his first play

Tabletop Magic Online Price History Tabletop Magic Online

Urza's Saga This is a land

Whispers of the Muse (T1, Ext, S, Block) A favorite in "Turbo Xerox" (a blue deck which used minimal land but a ton of cantrips to thin out the deck), Counter-Phoenix (Shard Phoenix + Forbid) and Tradewind-Awakening (put Awakening on the stack, tap all your lands for mana, untap all your lands), Whispers has what might seem like a hefty price to pay for one card but you get to do it turn after turn after turn