Spark Trooper

A 6/1 with trample, lifelink, and haste reads like a rate someone forgot to finish paying for, and the end-step sacrifice is the bill coming due. The body is built to do exactly one thing well: attack the turn it lands. Six trampling damage on arrival, six life back through lifelink, then it leaves before you can be punished for keeping a fragile attacker around. The self-sacrifice buys the numbers, but it also reframes how the creature gets used. This isn't board presence; it's a burst, closer in function to a one-shot burn-and-gain spell than a creature you deploy and protect. The single toughness invites a chump block, but trample means the block barely matters: a one-toughness blocker dies, soaks a single point, and the other five wash over the opponent's face, while lifelink still credits you for the full six dealt. You lose the creature, but it was dying on the end step regardless, so trading it for five-to-the-face plus six life is the bargain working as designed. The lifelink pushes the life totals in both directions at once: six closer to dead for them, six further from dead for you, in the same combat. Pump it, give it a way to connect, or feed it to a sacrifice payoff before the end step claims it, and the temporary nature stops being a cost and becomes the shape of the card: something you spend immediately, then let clean up after itself.