So yea, Goblin Guide is pretty nuts for this deck. 1cc 2/2 Haste is exactly what the deck has always wanted, and it just got it. The drawback is very minimal, considering that most decks will draw an extra card (land) from it 1/3 of the time, and we have a 3-5 turn clock. Goblin Guide increases the clock drastically... and even as a topdeck, it's pretty good, since few opponent's will hold back blockers if you don't have creatures in play, effectively acting as a Shock (unless they have removal). Easy replacement for Mogg Fanatic, IMO.
While I agree that Qasali Pridemage is good and can improve certain matchups (Chalice, CounterTop), it being GW is far too restrictive on the manabase. It opens you up drastically to manabase hate and severly weakens PoP's. I realize t1 Nacatl t2 Pridemage is sick, but let's not stretch things too far. Let's not forget that I was the major promoter for Nacatl in Goyf Sligh when it was first printed and had to fight waves of criticism about running Nacatl and going 3c... and even I have to say that Pridemage is better left for Zoo. Even with the new enemy fetchlands, running GW creatures is simply too much. If you want answers to Chalice and CounterTop, stay in color and run Vexing Shusher.
Here's what I'll be playing as soon as Goblin Guide gets printed:
RGw Goyf Sligh
Lands (19)
4 Wooded Foothills
4 Arid Mesa
3 Taiga
2 Plateau
1 Savannah
4 Mountain
1 Forest
Creatures (14)
2 Grim Lavamancer
4 Goblin Guide
4 Wild Nacatl
4 Tarmogoyf
Spells (27)
4 Lightning Bolt
4 Chain Lightning
4 Rift Bolt
4 Incinerate
4 Magma Jet
3 Price of Progress
4 Fireblast
Sideboard (15)
1 Price of Progress
2 Krosan Grip (or Smash to Smithereens)
4 Vexing Shusher
4 Path to Exile
4 Chalice of the Void
Exact same MD I used to run, directly swapping Fanatics for Guides. My sideboard has changed, but that's due to the metagame shift and the new cards (in this case, PtE), that have been printed since the last time I played this deck.
The low creature density high burn count is what makes this deck so lethal and seperates it from Zoo. The creatures push through early damage points, backed with burn on small blockers. Once that plan goes to hell, the opponent should be low enough on life, and the reach of all the burn spells should easily finish the opponent off. Very aggressive deck. Some matchups just play out like straight burn, when that's how you're drawing, which is perfectly acceptable... some matchups are better off that way.
Vexing Shusher is the ultimate Chalice/CounterTop stopper. Krosan Grip, if I choose to run it over Smithereens, is not there for Chalice/CounterTop... it's there for other random problematic artifacts/enchantments.

