You take 3.
Plains, tap out for Treespring Lorian, Done.
Limited: 15
Hand: 11
Play:
(U) Plains
(U) Island
(U) Mountain
(U) Mountain *Guiding Elves*
(U) Forest
Elvish Guidance (Whenever enchanted land is tapped for mana, its controller adds {G} to his or her mana pool for each Elf in play)
(U) Elvish Pioneer (1/1) [when ~ comes into play, put a land card from your hand tapped into play]
(U) Sparksmith (1/1) [T: Sparksmith deals X damage to target creature and X damage to you, where X is the number of Goblins in play]
(T) Goblin Sky Raider (1/2) [Flying]
(U) Wirewood Elf (1/2) [T: Add G]
Graveyard:
Spiderman 14
Hand 12
Play
(T,T) Plains x2
(T) Island
(T,T) Forest x2
(T) Swamp
(T) Snarling Undorak (3/3, 2G: Target Beast gets +1/+1 ueot)
(S) Treespring Lorian (5/4)
Graveyard: Aphetto Alchemist
Plains, tap out for Treespring Lorian, Done.
Limited: 15
Hand: 11
Play:
(U) Plains
(U) Island
(U) Mountain
(U) Mountain *Guiding Elves*
(U) Forest
Elvish Guidance (Whenever enchanted land is tapped for mana, its controller adds {G} to his or her mana pool for each Elf in play)
(U) Elvish Pioneer (1/1) [when ~ comes into play, put a land card from your hand tapped into play]
(U) Sparksmith (1/1) [T: Sparksmith deals X damage to target creature and X damage to you, where X is the number of Goblins in play]
(T) Goblin Sky Raider (1/2) [Flying]
(U) Wirewood Elf (1/2) [T: Add G]
Graveyard:
Spiderman 14
Hand 12
Play
(T,T) Plains x2
(T) Island
(T,T) Forest x2
(T) Swamp
(T) Snarling Undorak (3/3, 2G: Target Beast gets +1/+1 ueot)
(S) Treespring Lorian (5/4)
Graveyard: Aphetto Alchemist