Name:Migratory Greathorn
ManaCost:3 G
Types:Creature Beast
PT:3/4
K:Mutate:2 G
T:Mode$ Mutates | ValidCard$ Card.Self | Execute$ TrigChange | TriggerZones$ Battlefield | TriggerDescription$ Whenever this creature mutates, search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.
SVar:TrigChange:DB$ ChangeZone | Origin$ Library | Destination$ Battlefield | Tapped$ True | ChangeType$ Land.Basic | ChangeNum$ 1
Oracle:Mutate {2}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)\nWhenever this creature mutates, search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.
