Gamma Grotesque

A vanilla-adjacent 3/3 with vigilance until you find the mana for its Power-up, and then the card stops describing a threat and starts describing a payoff for a board you have already built. The activation drops three counters on this body and draws a card for each creature you control that already carries a counter, so the reward scales off a table full of +1/+1 counters, proliferate triggers, and other counter-bearers you deployed on earlier turns. It reads the battlefield instead of seeding one, which means an empty board buys three counters and one card and nothing more. Vigilance lets the 3/3 attack and still keep back blockers while the draw resolves, so committing to combat never costs you the defensive posture the refill demands. The cost-reduction clause folded into the ability rewards deploying and detonating in the same turn, trimming the six-mana bill and softening the tempo cliff of paying full price. And the once-only restriction is what keeps this from becoming a loop: it is a single burst proportional to work done elsewhere, not a recurring engine. Fair for a three-drop that asks a counters-heavy battlefield to exist first, and quiet at an empty one.