Leonin Vanguard

The three-creature threshold is where the design lives, and it tells you exactly what kind of deck was meant to run this. A lone 1/1 for one mana is board-filler on turn one; the buff only switches on once you have committed a crowd, which reframes the card as a payoff for going wide rather than a body you cast early and grow. In a deck built to empty its hand, the line pays off later: with your third and fourth creatures already swinging, the +1/+1 turns an idle 1/1 into a real point of pressure while the incidental life quietly shifts the race math against another aggressor. And because the check happens at the start of every combat you take, not once, it compounds a little each turn the board holds, nudging both your clock and your life total upward. That recurrence justifies the slot: a cheap creature that grows the crowd's advantage without asking for more mana is the sort of low-cost engine white go-wide aggro wants filling its one-drop lineup. The flip side is that the text is conditional to the point of vanishing. Field fewer than three bodies and it reverts to a vanilla 1/1 whose only line never fires, which makes it a payoff that punishes stumbles rather than a stabilizer that bails you out of them.