Furyblade Vampire

The combat-step pump that pays for itself in cards: pitch one, swing for four with trample. The discard is the lever, and it points the design squarely at decks that want their graveyard full anyway. Madness, flashback, escape, anything that turns a discarded card into a second use makes the +3/+0 effectively free, while trample turns the swing into reliable damage instead of a chump-blocked overcommitment. The real friction sits in the timing. The trigger fires before attackers are even declared, so the discard is a bet placed against an opponent who still has all the information: an untapped blocker, a removal spell held for exactly this moment. Wait for the pump to resolve and a single point of interaction eats a 4/2 that has already spent a card from hand. That is the tension the design lives on, committing the resource before combat math is settled, and it is what separates the aggressive lines from the greedy ones. A 1/2 body ducks the early one-damage pings that flimsier aggressors fold to, and because the boost is a triggered ability rather than a mana sink, the creature threatens to grow through a fully tapped-out board. Every combat it asks the same question: is the card in your hand worth less than three points of trample right now? In a shell built to answer yes, it is a recurring clock; in one that merely feeds it fuel, the loop is the reason it earns the slot.