Recurring Nightmare, sac an insect to Recur Penumbra Wurm. Done.
Oversoul: 7
Hand: 6
Library: 25
In Play:
-(T, T) Swamp x2
-(T, U) Forest x2
-(TTTTTT) Insect (1/1) x6
-(S) Penumbra Wurm (6/6; trample, when it dies I get a 6/6 black trampling wurm token)
Graveyard: Fallow Wurm, Harvest Wurm...