Plumecreed Mentor

The counter goes somewhere the flying creature can't reach itself, and that restriction is doing all the strategic work. Every flyer you control entering (this one included) drops a +1/+1 counter on a creature you control without flying, which splits an aerial-tribal deck into two boards that feed each other. The evasive fliers are the engine, ticking growth onto a grounded beater every time one lands; the creature stuck on the ground becomes the payoff, banking the counters the flock can never spend on itself. What makes it feel effortless is that the payoff is welded to a keyword you were already stacking your deck with: this is counters synergy that never asks you to draw a dedicated counters card, because the trigger rides on flying. The 2/3 body suits the split, surviving most early-turn combat and keeping the machine online rather than trading itself away. And because the counter can only land on a creature without flying, you can't collapse the whole plan into one unkillable evasive threat: the reward is aimed at the part of your board that struggles to close, and it obligates you to actually field a ground presence to hold the growth. That asymmetry is why the card functions as a bridge between an air plan and a ground plan rather than a straightforward go-wide multiplier.