Zerg Rush swarm need opinions on adding 1 snows

[iSayChale!]

Hello gemp players i am in need for some advice for my swarm deck. it preforms fairly well but i am noticing in a few games i would like to have a sarumans snows in my hand. i just dont know which card to cut or if i should even play one at all. just thought i would post the deck here for some feedback. im leaning towards cutting 1 warg rider but i dont know. what do you think? thanks in advance for any help.  McL



Ring-bearer: Frodo, Resolute Hobbit
Ring: The One Ring, The Binding Ring

Adventure deck:
Isengard Ruined
Rohirrim Camp
Hall of the Kings
Pelennor Prairie
Pelennor Flat
Minas Tirith Fifth Circle
Osgiliath Crossing
Cross Roads
Haunted Pass

Free Peoples Draw Deck:
1x Ent Horde
1x Gandalf, Leader of Men
1x Host of Fangorn
3x Huorn
1x Lindenroot, Elder Shepherd
1x Treebeard, Keeper of the Watchwood
2x Barliman Butterbur, Prancing Pony Proprietor
1x Gandalf's Staff
1x Narya
4x A Wizard Is Never Late
2x Grown Suddenly Tall
2x Roll of Thunder
4x Saved From the Fire
4x Servant of the Secret Fire
2x Terrible and Evil

Shadow Draw Deck:
4x Isengard Shaman
4x Isengard Tender
4x Isengard Tinker
4x Isengard Warrior
4x Uruk Foot Soldier
4x Warg-rider
4x Goblin Runner
1x Saruman's Power
1x Greed