Creature 20
4 Hedron Crawler
3 Sylvan Advocate
2 Nissa, Vastwood Seer
4 Thought-Knot Seer
3 Reality Smasher
3 World Breaker
1 Ulamog, the Ceaseless Hunger
Spells 16
4 Oath of Nissa
3 Nissa's Pilgrimage
4 Explosive Vegetation
1 Nissa's Renewal
2 Seasons Past
2 Chandra, Flamecaller
Lands 24
12 Forest
2 Cinder Glade
2 Mountain
1 Waste
3 Sanctim of Ugin
4 Shrine of the Forsaken Gods
Sideboards 15
1 Jaddi Offshoot
2 Rending Volley
4 Kozilek's Return
1 Ulamog, Ceaseless Hunger
3 Spatial Contortion
1 Clip Wings
1 Chandra, Flamecaller
2 Warping Wail
Was impressed with Seasons Past thanks to Jon Finkle. Threw it in the GR Ramp shell but made it a bit more midrange. Since I'm curving out and going more aggressive, I threw in Sylvan Advocate over Jaddi Offshoot. Thinking of removing an Oath of Nissa or Reality Smasher to make a set of Advocates or World Breakers. I find GR Ramp gassing out often in late games. Kozilek, the Great Distortion can be good at refueling, but the high cost means you often don't even get the chance to cast it. Seasons Past can keep the fuel going.
Curve of things to grab with Seasons Past looks pretty good.
CMC
0 Sanctim of Ugin
1 Oath of Nissa
2 Hedron Crawler, Sylvan Advocate
3 Nissa, Vastwood Seer, Nissa's Pilgrimage
4 Thought-Knot seer, Explosive Vegetation
5 Reality Smasher
6 Nissa's Renewal, Chandra, Flamecaller
7 World Breaker
10 Ulamog, the Ceaseless Hunger
I just threw the sideboards together. Will readjust it later. Anyways, gonna run something like this for Gameday. Thoughts?