Any constructive criticism would be greatly appreciated!
Your biggest problem here is the lack of Pillar of Flame. You should have 4 in your 75 as it's an essential card for some matchups. Specifically, anything with Undying or other recursion, and Blood Artist. Putting some or all of them in the sideboard might be the way to go for a certain metagame, but in most cases I'd run them in the maindeck.
-What matchups would you bring in Pyreheart wolf in against? Is it worth it? What about the mainboard? He seems to do well in a variety of matchups (there really are 0 decks not running creatures to block)
-4 Burning earth is the right amount here right? Lot's of Jund and W/U variants in my meta... Do I bring in 4 on the draw? on the play?
-4 Volcanic Strength too many? I love it in most aggro matchups (so long as they run red) but most if not all of these decks run removal not only in the form of burn (which VS can jump over quickly) but in the form of Dreadbore and what-not.
- More Mizzium Mortars?
Thanks for the help guys any feedback is greatly appreciated!