Trample
Whenever a player casts a spell, put a chip counter on its converted mana cost.
B-I-N-G-O gets +9/+9 for each set of three numbers in a row with chip counters on them.
NM-Mint - $0.20
NM-Mint Non English - $0.20
Lightly Played - $0.20
Lightly Played Non English - $0.20
Moderately Played - $0.20
Moderately Played Non English - $0.20
Heavily Played - $0.20
Heavily Played Non English - $0.20
Damaged - $0.20
Damaged Non English - $0.20