Gustcloak Harrier

The Gustcloak mechanic was an early-era attempt to make small white creatures into attackers that never trade down in combat, and the trigger here is the cleanest expression of the idea. Declare an attack, get blocked, and you may untap the creature and pull it out of combat: no combat damage is dealt or received, so the swing simply aborts. The defender has committed a blocker to nothing, the body comes back untapped and ready to block on the crack-back, and the controller ends up with an attacker and a blocker out of a single creature. What the trick buys is not damage on a blocked attack (there is none) but the ability to probe defenses for free. Throw the Harrier at the red zone every turn; if the opponent leaves the lane open, the two flying damage connects, and if they commit a blocker, you walk away clean and keep the body. The flying is where the design overlaps with itself, since evasion already routes around most ground defenders and makes the untap-out-of-combat clause redundant in the common case. The trigger earns its keep against the gang-block or the chump on a flier: rather than feeding the Harrier into unfavorable math, you decline the trade entirely. As a 2/2 flier for three mana, it sits at the modest end of a cycle whose stronger members carried bigger bodies or meaner triggers; the appeal was always the team build, where a board of Gustcloaks slid out of combat in unison.