The Black Mangrove Tree

{b}{b}{b}, Sacrifice a Creature: Gain control of target land, it becomes a Mangrove forest swamp in addition to its other card types

{g}{g}{g}, Sacrifice a Mangrove Land: Gain control
of target creature that creature becomes a Disciple in addition to its other types

"Why that's just a Black Mangrove tree"
- Lakin the Object