Ramp deck with Whisperwood and Ugin, the Spirit Dragon

Ugin is powerful, as both mass removal and direct damage. It deserves to be in some serious ramp decks. One of the best ramp cards, luckily, work quite well with Ugin and Whisperwood Elemental. I am talking about Nassa, Worldwaker.

3GG

+1: Target land you control becomes a 4/4 Elemental creature with trample. It's still a land.

+1: Untap up to four target Forests.

−7: Search your library for any number of basic land cards, put them onto the battlefield, then shuffle your library. Those lands become 4/4 Elemental creatures with trample. They're still lands.

After making a land 4/4 colorless creature, the card can provide 8 mana for green based decks the next turn it enters the battlefield. Your opponent is forced to answer Nassa or he 'll get swept by Ugin.

The list may look like this:

Sylvan Caryatid 4

Voyaging Satyr 4

Elvish Mystic 4

Courser of Kruphix 4

Genesis Hydra 4

Polukranos, World Eater 4

Arbor Colossus 4

Ugin, the Spirit Dragon 2

Nissa, the Worldwaker 4

Chord of Calling 3

Hornet Queen 1

Whisperwood Elemental 1

Nylea's Disciple 1 Reclamation Sage 1 Hornet Nest 1

Nykthos, Shrine to Nyx 4

Forest 18

However, I can't tell if this deck can beat UB control or Mardu Midrange. I have tried many times to do so with current green decks. It's so hard.