imprint mtg cards Magic: the Gathering - Spellbinder you may exile an instant card with converted mana cost 2 or less from your hand Post #39 - Cryptic Periapt

Exiling the graveyard is one of the easiest ways to shut some decks out of the game, and its easy to play Anafenza on turn 2 with mana dorks

On the flip side, the decks you need cheap removal most against are the ones with the most things this will hit

Not exactly, but The Unagi of Kyoshi Island does a good impression without being broken like the Game Changer sphinx

Proxies are not allowed in sanctioned events

We finish with the unusual uncommon in my top spot

Namely, most of the flashback and friends cards were created for non-commander formats, and some of the good ones are a nonbo with being copied (Echo of Eons)