
At the beginning of your upkeep, put an oil counter on another target nontoken artifact or creature you control.
{2}, {T}: Create a 1/1 red Phyrexian Goblin creature token. Activate only if an oil counter was removed from a permanent you controlled this turn or a permanent with an oil counter on it was put into a graveyard this turn.
Churning Reservoir has 1 printing, first in Phyrexia: All Will Be One (2023). EDHREC ranks it #19,858 among Commander cards. It appears most in Migloz, Maze Crusher decks (798 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.