Inventor's Axe

Most Equipment pays for its bonus twice: once to cast, once to attach. This one collapses that math into a single one-mana flash spell that arrives already strapped to a creature, then hands you the resource to move it later for free. What makes that work is currency separation. Casting it costs red mana; attaching it is baked into the same entry trigger; and the equip cost is two energy, which the Equipment mints for you the moment it lands. You get exactly enough energy to move it once, so the free reattachment is a one-shot unless another energy source feeds it. That is the balancing seam: without an outside supply of counters, the +2/+0 is essentially mono-attachment with a single relocation in reserve, a combat trick that happens to persist. With an energy engine behind it, the equip cost becomes a repeatable, mana-free way to slide the buff onto whatever attacker survives. Flash is what gives it teeth: dropping it in the combat step to ambush a block or push lethal through open damage is a use no sorcery-speed Equipment can replicate, and it dodges the usual window where a freshly cast Equipment sits unattached and useless. It reads as a small aggressive card and functions as one, but the design is really a deposit of energy dressed up as a weapon.