Moment of Heroism

The two-mana combat trick splits into two jobs that rarely sit on the same card: surviving a fight and swinging the race. The +2/+2 handles survival, big enough to push a creature out of most burn ranges, to win a doubled-up block, or simply to soak a point of damage from a spell pointed at it; the lifelink handles the race, converting the buffed body's full damage into life on every hit, in combat or out of it. That instant-speed lifelink is the wrinkle worth the mana. Granted on an unblocked attacker, it turns a routine swing into a real move on the life totals; granted on a blocker, it ambushes the attacker and pays back exactly what the creature deals; granted on a creature that pings or fights, it banks that damage as life too. Within white's long line of pump-plus-keyword tricks, this one leans on lifelink specifically because lifelink is the keyword that matters most in a damage-trading mirror, where the +2/+2 alone might not close the gap but the life swing breaks the symmetry. The cost of stapling two jobs to one card is rate: neither half is large in isolation, and the card wants a board where combat is already happening to extract full value from both. It rewards holding the mana open through a stalled or racing board, where granting lifelink at the right step often buys the life cushion that ends the game.