Mongoose seems weak. Its just a 3/3 and that's only in the mid game.

Liliana and Brainstorm are both great ways to get rid of a Progenitus in your hand so I would want to play 4 of each.

Perhaps...

4 Verdant Catacombs
4 Misty Rainforest
3 Polluted Delta
2 Bayou
2 Underground Sea
2 Swamp
1 Island
1 Forest
1 Tropical Island
1 Dryad Arbor

4 Deathrite Shaman
4 Tarmogoyf
4 Shardless Agent
1 Progenitus

4 Ancestral Vision
4 Brainstorm
4 FoW or Hymn to Tourach
4 Liliana of the Veil
4 Natural Order

3 Thoughtseize
3 Abrupt Decay