Flying Whenever Guildpact Informant deals combat damage to a player or planeswalker, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Near Mint - $0.25
Lightly Played - $0.24
Moderately Played - $0.20
Heavily Played - $0.15
Damaged - $0.13
Near Mint Non-English - $0.25
Lightly Played Non-English - $0.24
Moderately Played Non-English - $0.20
Heavily Played Non-English - $0.15
Damaged Non-English - $0.13