I take 1. Man, I sure hope you don't have anything that requires a lot of mana...
Untap, upkeep
Swamp, Done
Limited: 18
Hand: 11
Play:
(T) Plains
(U) Island
(T) Mountain
(U) Mountain *Guiding Elves*
(T) 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 15
Hand 13
Play
(U) Plains
(U) Island
(U,U) Forest x2
(U) Swamp
(U) Snarling Undorak (3/3, 2G: Target Beast gets +1/+1 ueot)
Graveyard: Aphetto Alchemist