Soratami Cloud Chariot

Both modes cost the same two mana and both point at a creature you control, which tells you exactly who this artifact was built for: the player on the offense who wants the help to carry no color identity. The flying grant is the obvious enabler, pushing a ground creature over a stalled board, but the damage-prevention mode is the quieter and stranger one. Stopping all combat damage dealt to and by a creature turns an attacker into a free swing or a blocker into a wall that survives anything, and it does so at instant speed, on the stack, in response to blocks or attacks. The colorless source for both effects is the design point: any deck, regardless of its colors, can install this as a repeatable combat lever instead of spending a card on a one-shot trick. The cost is the flatness of the rate. Five mana to deploy the permanent, then two more each time you fire an ability, is a steep tax for combat manipulation, and because activating neither ability taps the artifact, the only ceiling on how often you can use them is how much mana you can spare. That is the tension that has always kept this kind of evergreen, repeatable, colorless combat lever on the margins: the effect is genuinely flexible, but the deployment cost asks an aggressive deck to slow down before it can speed back up, and the rate it pays out never scales past those two-mana increments.