mtg coin flip cards Mana Clash Price & Card Details — Ninth Edition The 38 Best Coin Flipping

Or casting Smuggler's Surprise

The Aetherspark is one of the best examples of a single card with multiple types

The ability to filter those cards a bit and the need for cards in the graveyard meant this saw some fringe play in Standard

Imprint was a mechanic from Mirrodin block (and later reprinted in Scars of Mirrodin block) where the player had to exile a card when casting the spell (the exiled card came from different places), which then was used as a marker to determine something about the spell

There are a ton of great options for gate cards to go find and help with mana fixing thanks to Battle for Baldurs Gate

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