Dies to Removal

I don't post much anymore (sorry), but I don't really have anybody to post feedback for decks anymore, so I was wondering if anybody had some comments on this deck.

[deck]
Creatures
4 Elvish Mystic
4 Heir of the Wilds
4 Scaleguard Sentinels
4 Goblin Rabblemaster
4 Flamewake Phoenix
4 Thunderbreak Regent
1 Surrak, the Hunt Caller
4 Stormbreath Dragon

Non Creatures
3 Atarka's Command
3 Lightning Strike
2 Crater's Claws

Lands
7 Forest
6 Mountain
2 Mana Confluence
4 Wooded Foothills
4 Temple of Abandon

SB
3 Courser of Kruphix
3 Wild Slash
1 Outpost Siege
2 Xenagos, the Reveler
2 Destructive Revelry
3 Roast
1 Anger of the Gods
[/deck]

Any thoughts/improvements?

List from my group

I'd just maindeck roast.

I'd just maindeck roast.

The matchups where Roast is good, you are favored G1.

So if I bring in the Roasts to the main, what would you propose in the SB to replace it? More anti Aggro? Anti Control stuff?

Also, what is your opinion on Magma spray? Do you think it would be beneficial to play 2 Wild Slash 1 Magma Spray in the Side?

TubeHunter came back!