Paragon of Modernity

A colorless artifact body that pays out only when you feed it three colors of mana: the design idea sits entirely in that contradiction. A flying beater with a pump ability is ordinary, but the counter clause rewrites what "spent to activate" means for a deck. The base activation gives a fleeting boost, the kind of thing that fizzles at end of turn and does nothing to the board the following turn. Route exactly three distinct colors into that same activation, though, and the buff hardens into a permanent +1/+1 counter, so the creature gets tangibly bigger every turn instead of just bigger this turn. The friction is real: you need three colors available and have to choose to sink them into an activation rather than a spell, and the payout scales in single increments, so it wants a manabase built for reach rather than a lone splash. What makes the design worth noting is how it prices multicolor mana as a resource with its own dividend, not just a casting requirement. Most cards that care about colors count the symbols printed on a spell; this one cares about what colors are in your pool at the moment you activate, an activated-ability check on the mana itself. It reads as a colorless card, but it is really a payoff for the most demanding manabases a deck can assemble.