Lightning Prowess

The job here is to turn a body into a Crimson Wisps-style pinger: stick this on any creature and it gains haste plus a repeatable : deal 1 damage to any target, which means the same turn it resolves you can already start tapping for damage. Haste does double duty. It lets an aura-enchanted creature attack the turn it arrives, but more to the point, it lets the tap ability fire immediately rather than waiting out summoning sickness, collapsing the usual delay that makes pingers slow to come online. The trouble is the structural fragility every creature Aura carries: spend three mana plus a creature to assemble the package, and a single removal spell answers both halves at once for less. That two-for-one exposure is what keeps this kind of effect off the constructed radar, where Prodigal Sorcerer and its descendants do the same pinging on one self-contained card. What the Aura form buys in exchange is reach: it can turn a creature that already wants to be in play (a token engine, a beater you were casting anyway) into a machine-gun with no body to find separately. The damage is small and the math is patient, but a haste-granting pinger aura is a tidy piece of repeatable reach for a deck built to protect the carrier.