Aggressive Biomancy

The double-X on the cost is the tell that this is built for the top end of a green-blue clone deck, not the middle of a curve: because both X's scale together, every extra copy costs two generic mana, and every copy arrives with its own removal stapled on. That fight trigger is what earns the card its place in a long line of populate-and-clone effects that only ever added bodies. Copying your best creature X times is already a Simic staple; making each of those copies swing at a creature you don't control the moment it enters turns a board-flood into a board-clear, and the two scale off the same number. What you choose to copy is the real lever. Point the spell at a heavy hitter and each token brings that same power to a fight against an opposing threat; copy a creature whose enter-the-battlefield trigger or static ability earns its keep, and the fight becomes a bonus riding on whatever the body already does. The "up to one" clause on the fight is the release valve: it lets you dump copies onto an empty board without forcing a suicidal brawl into an oversized blocker, so the card stays useful when there is nothing worth killing. This is not a fight spell that happens to clone; it is a clone spell that converts your best creature's power into repeatable removal, one token at a time, with the number of copies and the number of fights you can start locked to the same X.