Cards that manipulate counters in various ways. I'm not including: Planeswalkers, Sagas, Infect, Wither, or Energy counters, because those cards are easy enough to search for.
• Add any type of counters to a card
• Add +1/+1 counters to a creature
• Add other counters to a card
• Uses counters on other cards
• Uses +1/+1 counters
• Uses other types of counters
• Remove/Move counters from a card
Click here for a text version of this decklist
Click here for my EDH Commander decks
Playable in color identity: / / / /