Lion Heart
The bolt is built into the buckle. Most Equipment sits inert on the battlefield until you pay to move it, and the payoff is a stat bump that only lands if the wearer survives. This one collects its value up front: the enters trigger fires 2 damage at any target the moment it resolves, before the equip cost ever comes into play, so the card has already earned its slot whether or not a creature picks it up. That yields two transactions that stand on their own. The entry damage is removal or reach, a Shock stapled to a permanent that stays on the board afterward. The +2/+1 and the equip cost are a later decision, made on your own timing, when a threat is worth armoring. What makes the shape unusual is the independence of the halves: cast it as a burn spell that happens to leave an Equipment behind, or as a suit-up piece that happens to have killed something on the way in. The usual Equipment risk (the creature dies and your card investment evaporates) is largely defused, because the damage is banked before any attachment exists. The +2/+1 stays deliberately small, which keeps the equip a supporting play rather than the reason to run the card. The design reads less like a piece of gear with a bonus and more like a burn spell that refuses to leave the table.
