Pygmy Kavu

This is hate-bait dressed as a creature, and the punchline is that it only works if your opponent volunteers the setup. The draw trigger keys off black creatures your opponents control, which means the card does precisely nothing against the half of the table that isn't playing black, and even against black, it rewards the specific board state where the opponent has committed bodies to the table. That conditionality is the whole gamble: the printed body is a forgettable 1/2 for four, so every point of value lives in the enters trigger, and the trigger is metagame-dependent in a way that puts the card entirely at the mercy of whoever sits across from you. Planeshift was built around the five enemy color pairs and the tension between allied and enemy magic, and Pygmy Kavu sits squarely in that frame: green, the color most often cast as black's natural opposite in the Invasion block's color war, getting paid to punish black's creature decks. It is a piece of designed-in color hatred, the kind of card that reads as a sideboard answer printed at common before the modern sideboard-card vocabulary had fully settled. Strip away the flavor and what remains is a draw spell whose payout you cannot control, stapled to a creature you would never otherwise cast.