Chip counter

Chip counter are a type of acorn counter introduced in Unhinged.
==Description==
Chip counters first appeared in Unhinged on <c>B-I-N-G-O</c>. Whenever a spell is cast, a counter is added to B-I-N-G-O's art on the number for the spell's converted cost. The creature then gets +9/+9 for each row of 3 met up to a max of +72/+72. The counters are considered to be on the inherent tracker in B-I-N-G-O’s art, not on the creature itself. Those counters can’t be removed or moved to another permanent. Similarly, if you proliferate, you can’t add more chip counters to B-I-N-G-O. 
==Trivia==
The counter is a reference to the game Bingo.