@ SB:
Phyrexian Metamorph is probably the best answer to Emrakul (Pehaps run a
Conquering Manticore for funsies! Jk).
Pyroblast is what I use to great success against Snapcaster.
Obviously you know about
Anarchy, Reds only real answer to any type of enchantment destruction. I'm assuming its for Enchantress that you're trying to deal with Moat, but perhaps if you wanted to stall the opponent out maybe
Gravity Sphere? The card is essentially worthless but if the deck isn't Enchantress then this hurts them as much as it hurts you. :p
On a separate note, I was browsing through some old sets and found a couple cards. Figured I'd post this just for fun, not feigning they'll be competitive:
Combust,
Defender of Chaos,
Omen of Fire.