(I'm at 15, right? you took 1 off for the grunt in your post, then took another 3 off...) (Also, it's B and discard to gain flying, so I tapped your swamp)
Untap, Upkeep
Attack w/ Firecat for 7 and Grunt for 1
Spidey: 17 9?
Hand: 5
In Play:
(U,U) Plains x2
(T,U) Forest x2
(T,U) Swamp x2
(U,U) Mt x2
(U) Werebear (1/1, T: Add G to my mana pool. Threshold - ~ gets +3/+3)
(T) Fledgling Imp (2/2, B, Discard a card: ~ gains flying ueot)
(U) Pilgrim of Virtue (1/3, pro-black, W, Sac ~: The next time a black source of my choice would deal dmg this turn, prevent that dmg)
(U) Frightcrawler (1/1; Fear; Threshold: ~ gets +2/+2 and can't block)
(T) Dwarven Grunt (1/1; Mountainwalk)
Graveyard: Execute, Dusk Imp, Kamahl's Desire, Simplify, Earnest Fellowship
RFG:
BigBlue: 15
Hand: 6
In Play:
(U) Steamclaw (3,T: Remove target card in a gy from the game; 1, Sac ~: Remove Target card in a gy from the game)
(UU) Mountain
(U) Swamp
(U) Island
(UU) Plains
(U) Forest
(T) Dwarven Grunt (1/1; Mountainwalk)
(U) Frightcrawler (1/1; Fear; Threshold: ~ gets +2/+2 and can't block)
(U) Thought Nibbler (1/1; Flying; My Max Handsize is reduced by 2)
(U) Patchwork Gnomes (2/1; Discard a card: Regenerate)
(T) Savage Firecat (7/7; Trample; When I tap a land for mana, I remove a +1/+1 counter) ~7 +1/+1 Counters
Graveyard: Pilgrim of Justice, Patriarch's Desire, Aboshan's Desire
RFG: