Xenagos, the Reveler

The plus ability is the tell: a planeswalker that adds mana, scaled to your board, is a different kind of card from the card-advantage and removal engines that dominate the type. Most planeswalkers want to protect themselves and grind; this one wants to be spent. The token ability holds loyalty flat at zero while building the very board the ramp ability counts, so a turn-after-turn rhythm emerges where each Satyr you make raises the next turn's mana ceiling, and that mana wants to be dumped back into more threats. It is a Gruul engine in the truest sense: explosive, forward-only, allergic to the long game. The ultimate exists almost as a courtesy, a top-seven creatures-and-lands payoff that the rest of the card rarely lives long enough to reach, because the deck it belongs to has usually won by then. What makes the design hold together is that the haste on the tokens means the loyalty ability isn't just defense, it's offense the moment it resolves, blurring the line between protecting a planeswalker and attacking with one. Few planeswalkers reward you for already having a board the way this one does, and fewer still ask you to convert their loyalty into pressure rather than card advantage. It is the rare planeswalker built to enable aggression instead of outlast it.