Silver Wyvern
A defensive deflection engine built around a single repeatable trick: pay one blue and bounce a targeted effect off this Drake and onto something else. The constraints are what make it read more cleverly than the rate suggests. The spell or ability has to target only this creature (a multi-target removal spell stays put), and the redirected version must land on a creature, so it cannot be turned around into a face-burn shield or a way to kill an enemy planeswalker. What it does well is eat single-target removal at instant speed: the opponent points a kill spell at the 4/3 flier, and for one mana that spell now resolves on one of their own blockers, or on a creature you would rather not see survive. The ability also reaches sideways into combat math, redirecting a pump or a targeted effect mid-stack. The body is the limiting factor more than the cost; a 4/3 trades down to plenty, and the protection only matters while the Wyvern is alive to activate it. This is a piece of late-90s blue control texture, from the stretch when Wizards was probing what redirection could do as a recurring creature ability rather than a one-shot instant. The strict targeting rider is the rule that keeps the loop honest, narrow enough that the Wyvern protects itself without quietly becoming a universal answer.

