Wicked Guardian

The self-inflicted wound is the design engine here: the enters trigger points its two damage at a creature you control, not the opponent's, and it only pays off in cards if you have a friendly body to shoot. That misdirection turns what reads as a value creature into a synergy piece. The obvious lines are to clip an expendable token or a one-toughness body you were done with, but the sharper play aims the two damage at a creature that wants to be hurt: something with an on-damage trigger, a persist creature you'd like to trade off and bring back smaller, a body whose death you're mining for value. It wants to be the enabler in a shell already built to profit from harming its own things, bundling a damage source and a card into one four-mana package. The 4/2 frame matters to the math: it dies to the same incidental damage it likes to spread around, so it prefers attacking to blocking. Absent a friendly target the trigger is optional and simply skipped, which keeps the card live off the top of a deck while flagging that its ceiling lives entirely in the pieces around it. Unremarkable in isolation, it earns its keep wherever damage against your own creatures is a resource rather than a cost.