Guildpact Informant
Oracle Text
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.)
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.)
Grateful Apparition is definitely the more pushed version of it; it's literally just a matter of rarity shifting the CMC by 1 and color.