Tricks of the Trade

Unblockable as an Aura is a fragile bargain, and this is the version that asks the most for it. Four mana buys exactly two things: a creature that can't be blocked and a modest power boost, all loaded onto a single permanent that any removal spell trades up against. The card-disadvantage problem with combat Auras is sharpest here because the payoff is so narrow: you are not making the creature survive better, only land its damage uncontested. That trade only makes sense atop a body whose unblocked output justifies the investment, which pushes it toward decks built around a single fat threat rather than a board of bodies. The +2/+0 is almost incidental; the real text is "can't be blocked," and the boost is there to round the math up to a clean kill. It belongs to a long line of generic "your evasive guy now wins" Auras, the kind that tend toward common rarity because they ask for a deck shaped specifically to want them. Where a creature with built-in evasion or a one-shot trick spreads the risk, this concentrates it: one card, one creature, one swing the opponent is invited to disrupt at instant speed before damage.