In response to the Declaration of Attack, I'll use the Icy to tap the Queen. So I'll take 2 from the tokens.
Untap, upkeep, Draw, Underground River, Done.
DarthFerret: 11
Hand: 2
Library: 49
In Play:
(T,U) Forest x 2
(U) Reflecting Pool (T: any mana I can already make with my land)
(T) Plains
(U) Island
(T) Swamp
(U) Mountain
Dream Halls (Fun Stuff)
Land Tax
(U) Utopia Tree (0/2 T: add one mana any color)
(U) Birds of Paradise (0/1, Flying, T: any color mana)
(T) Sliver Queen (7/7 2: make a 1/1 sliver token)
(T,T) Sliver Token (1/1) x 2
Graveyard: Crystalline Sliver, Pyre Zombie, Chainer's Edict, Vindicate
RFG:
Spiderman: 16
Hand: 4
Library: 44
In Play:
(U,U) Underground Sea x2 (B/U Dual)
(U,U) Watery Grave x2 (Ravnica B/U Dual)
(U) Underground River (B/U Pain)
(U) Swamp
(U) Island
(U) Icy Manipulator (1, T: tap target artifact, creature, or land)
Graveyard: Dark Ritual, Force of Will, Polluted Delta, Spire Golem, Undermine
RFG: Donate
Untap, upkeep, Draw, Underground River, Done.
DarthFerret: 11
Hand: 2
Library: 49
In Play:
(T,U) Forest x 2
(U) Reflecting Pool (T: any mana I can already make with my land)
(T) Plains
(U) Island
(T) Swamp
(U) Mountain
Dream Halls (Fun Stuff)
Land Tax
(U) Utopia Tree (0/2 T: add one mana any color)
(U) Birds of Paradise (0/1, Flying, T: any color mana)
(T) Sliver Queen (7/7 2: make a 1/1 sliver token)
(T,T) Sliver Token (1/1) x 2
Graveyard: Crystalline Sliver, Pyre Zombie, Chainer's Edict, Vindicate
RFG:
Spiderman: 16
Hand: 4
Library: 44
In Play:
(U,U) Underground Sea x2 (B/U Dual)
(U,U) Watery Grave x2 (Ravnica B/U Dual)
(U) Underground River (B/U Pain)
(U) Swamp
(U) Island
(U) Icy Manipulator (1, T: tap target artifact, creature, or land)
Graveyard: Dark Ritual, Force of Will, Polluted Delta, Spire Golem, Undermine
RFG: Donate