Ballroom Brawlers

The interesting choice here is that the keyword is picked at the moment of attack, not baked into the card. Each combat, the trigger lets you decide whether you want first strike or lifelink, and the same choice lands on this 3/5 plus one other creature you control (not necessarily an attacker). That second target is where the flexibility lives: first strike wants to sit on a creature actually contesting a block, letting a fragile beater win a fight it would otherwise lose while the 3/5 clears its own blocker; lifelink can go on any creature you control this combat, so a second attacker, or a creature dealing noncombat damage this turn, feeds life back too. When you are behind on a race, granting lifelink to two bodies swings the totals in a single combat step. The 3/5 frame is doing quiet work underneath. It survives most of what it walks into on the ground, so the trigger keeps firing turn after turn rather than trading itself away for one good swing, which is what separates a repeatable combat engine from a one-shot pump spell. Durability plus a keyword grant that reaches a second body is the whole appeal: not a creature that wins on its stats, but one that makes an attacking board harder to block through and harder to race, and that recalibrates which of those two problems it solves every time you turn it sideways.