Bladed Battle-Fan

Flash on Equipment is the entire pitch, and it reframes what a combat trick can be. Because it enters at instant speed and immediately attaches to a creature you control, granting indestructible until end of turn, it slides into a block or a burn-heavy stack as a two-mana protection spell that leaves a permanent behind. That is the wrinkle: most tricks are a card you spend to survive a moment, then discard; this one survives the moment and stays on the battlefield as a repeatable +1/+0 with a cheap re-equip cost. The indestructible clause only fires on entry, not on subsequent equip activations, so the surprise is a one-time dividend paid for the flash tax; after that it behaves like an ordinary aggressive Equipment. The design threads a specific needle in black's toolkit: black rarely gets clean indestructible, and pairing it with the flexibility of an Equipment means the same card answers a targeted removal spell, wins a combat exchange, or simply pumps a threat depending on when you cast it. The equip cost keeps it honest as a permanent, forcing sorcery-speed sequencing once the ambush is spent, while the flash entry preserves the ambush for exactly one creature at exactly one instant. It is a small effect built around a large timing question: hold it, and it is a trick; drop it early, and it is a weapon.