Vesuvan Drifter

The clone that never sits still. Most copy effects lock in the moment they resolve: you choose a target, you become it, and that is the deal for as long as you stay on the battlefield. This one re-rolls its identity at the top of each combat, pulling from the one hidden zone you can already see, so the body you attack with is a function of what your library hands you rather than what is currently on the table. The permanent library-peek turns the reveal into a decision instead of a gamble: you know whether the top card is worth becoming before you commit, and if it is not a creature you simply keep the 2/4 flier and pass the trigger by. That base body matters more than it looks, because between combats the card is a genuine evasive blocker rather than a fragile do-nothing waiting for fuel. The retained flying keyword is the quiet load-bearing clause; whatever ground-bound beater or utility creature sits atop your deck, it arrives in the air, so the copy is always an attacker and not just a stat-line swap. It rewards a deck built to stack its library rather than shuffle it away, and it converts every creature you draw into two roles: one when you cast it, one when the Drifter borrows it.