Jodah's Avenger

Most evasion or combat-buff creatures hand you one trick and lock you into it; this one keeps the menu open turn after turn, and bills the choice to a shrinking body. The activation has no cap, so you can stack the -1/-1 as many times as the creature can survive it, swapping or compounding keywords each time: double strike one turn, protection from red the next, shadow when you need to get through, vigilance when you want to attack and hold the fort. The cost is the toughness, not the mana, which makes this an unusual budget in design terms: every keyword you grab eats into the 4/4 you started with, and a creature already whittled down by repeated activations can be killed by the very ability that made it dangerous. The shadow option is the sharpest of the four, since shadow creatures can block or be blocked by only other shadow creatures, turning a body most boards cannot stop into a clock no chump-blocker can interrupt. What balances the whole package is that all of it is temporary: the buffs and the shrink both reset at end of turn, so the menace you assemble has to close the turn you assemble it. It is a modular finisher that asks you to read the board and spend its own stats as the resource, a design that puts the entire combat math in the controller's hands and dares them not to overspend.