
, Remove a counter from another permanent you control: PopulatePopulateCreate a token that's a copy of a creature token you control.. Activate only as a sorcery. (Create a token that's a copy of a creature token you control.)
, Sacrifice another creature: ProliferateProliferateChoose any number of permanents and/or players, then give each another counter of each kind already there.. Activate only as a sorcery. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.