Shimmerwing Chimera

The upkeep trigger is the reason to build this Chimera as an enchantment rather than a plain flier: it turns the body into a recurring reset for one of your own permanents each turn. Bouncing an enchantment you control back to hand looks like a tax until you read it as a targeting choice. The words "up to" let the trigger whiff on purpose, so you never have to pick up something you would rather leave in play, and you point it only at enchantments that pay you coming or going: auras you want to re-cast onto a better target, or permanents carrying an enters-the-battlefield payload you can reload. In a shell with nothing worth returning it does nothing extra and just attacks in the air; in one built around enter-and-leave triggers it quietly compounds, one loop per upkeep. That conditional payoff is what makes the evasive body worth choosing over a generic 3/2 flier at the same rate: the return clause is upside you only cash when your board is built for it. The design belongs to a thin line of blue creatures that convert recursion into a clock, but it keeps the engine deliberately small. Capped at a single target and tied to your slowest window, the upkeep, the loop never outruns the tempo the flying already earns on its own.