The easier way to get all that tapping and untapping done and you have them in your other deck. An Elite Arcanist cast with an exiled Triton Tactics. Elite Arcanist will then be able to pay one mana and tap, to untap two creatures (we care nothing about the +0/+3 or blocking creature effects), those two creatures being himself and any creature that has an inspire ability and that is also enchanted with the Karametra's Favor. You tap the inspire creature for the mana for Elite Arcanist who then taps to untap him self and the inspire creature. SO yeah, EVERY creature that has an inspire ability can be an infinite loop this way. Infinite damage, life, mill, card draw, 1/1 tokens, and extort are all possible. Have fun. :)
Permalink
I'm not sure what real advantage you're getting out of having the non guildgate land in here. I'd consider running 2 of each gate instead. As it is now if an opponent exiles, destroys, mills or makes you discard a gate that you only have one of it becomes impossible for you to win with Maze's End.All those fog like spells are great but you might consider cutting a few and adding some cards to help drop land faster, like Urban Evolution, Into the Wilds, Unexpected Results and or a Kiora or two. Also Kiora's Follower and Prophet of Kruphix are great for untapping Maze's End to use it faster and speed up the deck. Just some food for thought.Oh and you might also consider Aetherize or Cyclonic Rift in place of say Rootborn Defenses. Better then just stopping the attacking damage for a round it bounces the creature so the opponent will spend a round or two recasting them.
This is a solid build. I have a burn deck very similar. I would side board the Anger of the Gods in favor of adding the Satyr Firedancer to the main deck. He effectively double all your burn spells. Always target the opponent and you get to burn a creature as well. You might also replace the Pyromancer's Gauntlets with Guttersnipes. I find the 5 casting cost on the Gauntlets is just too high. I'd much rather get the Gutter Snipe out for 3 and have 2 left over for a burn spell. Plus they will up your devotion for Oracle of the Bones where the Gauntlets don't.You might also consider Burning Earth for the main deck or side board. It's pretty easy to run this deck with all mountains and almost everyone runs a few non basic lands.
I'm not sure Pack Rat is the most efficient card for you here. You're paying 3 mana and discarding a card (with no way to get it back) to get a token and do 2 points of damage with Purphoros. I'd maybe replace them with Spike Jesters. Still only two casting cost and a 3/1 with haste is going to get into your opponents face way faster. That or add some direct damage burn spells like Shock or Lightning Strike. If you really want it to be just about getting creatures on the board to win with Purphoros's ability you need to pile the creatures in by comboing him with a mass token generator like Abhorrent Overlord or Master of Waves.