Dragonborn Champion

Five damage to a player, in a single instance, from any source you control: that number is doing precise work. It sits just above what a two- or three-drop swings for and just below what a real haymaker or a doubled attack delivers, which means the trigger asks you to build damage in chunks rather than dribble it out. Big trampling creatures, damage doublers, direct burn to the face, extra-combat effects: anything that pushes a single hit past four turns the ability into repeatable card advantage. The trample on its own 5/3 body is the seed of that plan, since a lone unblocked swing already meets the number. What makes the design work is that it rewards the play pattern Gruul already wants (attacking hard, and often) without demanding a dedicated engine. Because the trigger reads "a source you control," it does not care whether the damage comes from combat, a burn spell, or a second creature entirely, so it slots into aggressive red-green shells and into big-mana ramp decks that eventually land something that hits for a truckload. Crucially, the clause counts only damage to a player: this is not an excess-damage payoff, and overkilling a blocker does nothing. The reward tracks reach, not overkill, which pulls deckbuilding toward threats that connect with faces rather than trades that grind through the board.