Unflinching Courage

Trample and lifelink on the same Aura, with a +2/+2 buff to make the body durable enough to use them: the keyword pairing is the whole point, because each covers the other's weakness. Trample forces the damage through a chump blocker that would otherwise stall the threat, and lifelink banks every point of that damage as life, so a connected attacker swings the race twice as hard as the number on paper suggests. The +2/+2 is the supporting cast, making sure the creature wins the combat it is suddenly built to win rather than dying in the exchange. The standing risk with any creature enchantment is the two-for-one: invest a card to enrich a creature, then watch a single removal spell answer both. This one earns that exposure with an upside steep enough to flip a damage race in one attack step. It sits in the long Selesnya tradition of combat Auras that turn a modest body into a finisher, the same job Armadillo Cloak did years earlier with trample and a lifegain rider. The reason the trample-and-lifelink combination keeps reappearing in green-white is exactly this synergy: the trample guarantees the damage happens, the lifelink converts it, and the Aura stops reading like a stat boost and starts reading like a way to win the race outright.