Mr. Virtual

Menace Mr. Virtual can’t block and can’t be blocked by creatures with power 2 or less. Whenever Mr. Virtual attacks, defending player sacrifices a creature. If they can’t, they discard a card and lose 1 life. At the beginning of each opponent’s upkeep, if that player controls no creatures, they get a phantom counter. For as long as they have a phantom counter, creatures they control have “At the beginning of your upkeep, sacrifice this creature unless you pay {2}.”