Untap, upkeep, draw, Swamp, Fallow Wurm discarding a Forest, done.
Oversoul: 19
Hand: 5
Library: 50
In Play:
-(T) Overgrown Tomb (swamp/forest)
-(T) Forest
-(T) Swamp
-(S) Fallow Wurm (4/4)
Graveyard: Forest
RFG:
Mooseman: 20
Hand: 4
Library: 51
In Play:
(TT) Mountain
Leyline of Lightning (...