Smoke Shroud

An evasion Aura built to be discarded and reclaimed rather than protected. Most flying Auras carry the same liability: chump the flier, remove it in response, and the enchantment dies with the creature, one card down. This one flips that math by tying its return to ninjutsu. The recursion trigger is not combat damage but a Ninja entering the battlefield, which is exactly the event ninjutsu produces: an unblocked attacker gets swapped for a Ninja from hand, that Ninja enters, and the Aura offers to leap out of the graveyard onto the newcomer. The +1/+1 and flying are setup, not payoff. A small evasive body is precisely what a ninjutsu creature needs to slip past blockers and enable the swap in the first place, and the Aura seeds that early attacker with the evasion required to trigger the very loop it wants to ride. So the ideal sequence is to enchant, attack, get swapped out or traded away, and redeploy onto the next ninja as they leapfrog into combat. Under the hood this is a graveyard-based recursion piece wearing the frame of a common pump-and-fly, one that asks a deck to feed it into the yard on purpose and welcome it back turn after turn. Its whole reason for existing is that it does not mind dying.