Illvoi Light Jammer

Flash on an Equipment is the whole design lever here, and it does two jobs at once. The enters-the-battlefield attach means this never asks for the equip cost on the turn you cast it: two mana at instant speed buys a +1/+2 buff and a hexproof shield, dropped mid-combat to blow out a trade or slammed onto a creature the moment something on the stack threatens it. That collapses the usual Equipment tempo problem, where the caster pays once to cast and again to attach, into a single instant-speed motion that answers a threat and grows a body in the same window. The hexproof clause is deliberately fenced to end-of-turn rather than permanent, so the protection is a reaction, not a static ward: it saves the creature from whatever wants it dead right now and then lapses, keeping the card from becoming an unkillable-threat enabler. What lingers is the modest +1/+2, and the equip that lets the buff walk to a new creature after the original dies. The interesting tension is that the flashy part (protect and pump at instant speed) is a one-shot per cast, while the boring part (a small permanent stat bump you can re-equip) is the part that stays on the battlefield. It reads as a protection spell that leaves a piece of equipment behind rather than an Equipment that happens to protect.