Kird Chieftain

A red creature whose entire design points across the color pie: the static bonus keys off controlling a Forest, and the activated ability cannot fire without green mana, so a card that prints only red in its cost is functionally gold the moment you want either half. That is the unusual move here. Most two-color signposts ask you to play both colors in the loosest sense; this one withholds its payoff until the green commitment is real. The 3/3 body is a fine baseline, and the Forest clause nudges it to 4/4 the moment your manabase cooperates, but the trample pump is the half that defines the card. Handing +2/+2 and trample to any creature at instant speed turns a board stall into a clock, because the trample is what lets a Gruul beatdown plan push damage past chump blockers rather than getting walled. A repeatable instant-speed pump that grants evasion is a meaningful threat to leave open mana for, and it scales with the rest of your team rather than just buffing itself. The restriction doing the work is the green activation cost: a 3/3 that wants four mana plus a fifth to do anything threatening demands a deck genuinely built across red and green, not one with a token splash. Take the green away and you have a slightly conditional vanilla; commit to it and you have an aggressive engine that closes games.