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.
Near Mint - $0.30
Near Mint Non-English - $0.30
Lightly Played - $0.30
Lightly Played Non-English - $0.30
Played - $0.20
Played Non-English - $0.20
Heavily Played - $0.20
Heavily Played Non-English - $0.20
Damaged - $0.20
Damaged Non-English - $0.20