
Counter target spell, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Fuel for the Cause has 1 printing, first in Mirrodin Besieged (2011). EDHREC ranks it #6,600 among Commander cards. It appears most in Atraxa, Praetors' Voice decks (3,519 on EDHREC). It has 8 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.