Xavier Sal, Infested Captain is a rare Legendary Creature — Human Fungus Pirate card from Magic: The Gathering (The Lost Caverns of Ixalan Commander, LCC). Current market price: $1.23.
{T}, Remove a counter from another permanent you control: Populate. Activate only as a sorcery. (Create a token that's a copy of a creature token you control.)
{T}, Sacrifice another creature: Proliferate. Activate only as a sorcery. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
