Wingspan Stride
Auras carry a structural card-disadvantage problem that has haunted the class since the earliest sets: commit one to a creature, watch the creature die, lose two cards to one. The self-return clause here answers half of that objection. It cannot save you from the worst case (kill the creature in response to the Aura on the stack and the enchantment still hits the graveyard), but it addresses the resolved-and-vulnerable case that most Auras simply cannot: once the enchantment is on the battlefield, three mana buys it back to hand before removal can strand it, ready to redeploy onto whatever survives. That converts a flat +1/+1 with evasion into something closer to a recurring evasion engine, and it opens plays a permanent Aura never could: pull it up in response to a board wipe, shuffle it between attackers to push the best flyer through the air, or bounce and re-cast it to re-trigger an enchant-matters payoff on a fresh body. The front-half rate is deliberately slight, and the reason is the bounce: the enchant is cheap and the buff is small, but the buyback costs enough that you pay to protect the investment rather than loop it for free. Price the return any lower and the card stops being an Aura and starts being an abuse. It is a modest design that quietly softens the oldest reason to leave Auras out of a deck.
