Commander Ezio Auditore da Firenze Menace Assassin spells you cast have freerunning
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On the table its a Colorless Basic with 90 HP and the trusty Body Slam attack, but its value has nothing to do with the battlefield
Some people, however, have looked right past the design and focused on the game: Cant please everyone and most people are online to complain
If you have access to five or six mana on turn three, you can cast anything from a medium-cost commander to a game-warping spell
Making a creature unblockable for a turn isn't nothing, but having to return the creature to your hand (and probably having to wait at least two turns to try the same thing with the same creature, barring haste) should help mitigate that