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.)
NM-Mint - $0.10
Lightly Played - $0.10
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
NM-Mint Non English - $0.10
Lightly Played Non English - $0.10
Moderately Played Non English - $0.10
Heavily Played Non English - $0.10
Damaged Non English - $0.10