KeeganG

I'm just going to copy the suggestions i made for another purphoros deck (ignore the stuff about curse of bloodletting): Curse of the bloodletting is also a fun political card for putting a target on someone or killing an uprising threat quicker. For a spell that affects all your opponents, run gratuitous violence...probably better than curse in this case. I also think you should seriously consider adding some mana doublers like caged sun/gauntlet of power/extraplanar lens... staples in mono colored edu that have helped me out with my decks a ton. I think that the strongest way to win with purphoros is to play ****krenko**** so making sure that you can consistently get krenko into play is pretty important. For this, i'd recommend running cards like gamble, goblin recruiter, and planar portal/ring of three wishes. Hope some of this helps :)

Steel of the godhead would be excellent in this deck. (Used to play a deck that ran steel, augury adept, and thistledown liege...lots of fun! )

yeah, it was pretty hard when i found out that ruric's damage doesn't count towards commander damage (6 for each non-creature spell is brutal)...but runic is still my favorite deck to play. I'd really prioritize krenko and strongly recommend running goblin recruiter to fetch him up. With krenko, some goblins, and purphoros in play, you'll win quickly.

Replace searing spear with lightning helix if you can get your hands on one. Consider adding more land*** you're playing a very expensive general that will likely die or be exiled a few times in the game. Lot's of mana is important. In commander, i try to aim for high 30s and run lots and lots of ramp. Since you already have good ramp, i'd suggest going to 36 lands at the minimum and adding a bit more ramp...stuff like mana vault that's straightforward, or endless horizons if you want something that's more high risk, high reward. I'd also suggest taking out vexing devil...unless you're playing an aggro blitz deck, 4 damage is just way too negligible. I'd say that since you're in white, you'd probably do well running swords to plowshares and path to exile as excellent low mana solutions to pesky, big creatures (especially the indestructible eldrazi lords and blight steel colossus)..hope this helped!

Forgotten Ancient
Vigor
Doubling Season
Craterhoof Behemoth

That's what i can think of off the top of my head, hope it helps!

And, run tooth and nail and ogre battledriver...TnN entwine into avenger of zendikar and ogre battledriver....or avenger and crater hoof if you have a haste enabler in play...just brutal and will probably win you the game.

I just wanted to make sure you know that the damage that purphoros deals to opponents with his ability doesn't count towards commander damage (i found this out a few months ago when i built my ruric thar edh deck). I also want to add that curse of bloodletting is typically better than furnace of wrath because furnace also affects damage that would be dealt by opponents' creatures and spells....meaning that you put yourself in a very dangerous position playing it. Curse of the bloodletting is also a fun political card for putting a target on someone or killing an uprising threat quicker. For a spell that affects all your opponents, run gratuitous violence...probably better than curse in this case. I also think you should seriously consider adding some mana doublers like caged sun/gauntlet of power/extraplanar lens... staples in mono colored edu that have helped me out with my decks a ton. I think that the strongest way to win with purphoros is to play ****krenko**** so making sure that you can consistently get krenko into play is pretty important. For this, i'd recommend running cards like gamble, goblin recruiter, and planar portal/ring of three wishes. Hope some of this helps :)

I'd recommend running lightning greaves/swiftfoot boots to protect jhoira. Otherwise, the deck looks great!

I'd suggest going to 24 lands just for the sake of consistency. I like the deck! I have a playset of precursor golems in my trade binder and have always wanted to make a deck with them...i think you've inspired me :)

Might as well run riptide laboratory to protect braids. If you're looking for a fun suggestion, look into running proteus staff. Not only can you use it as another way to cheat fatties into play, you can also tuck your opponents best creatures (somewhat offsetting braids' effect) and their commanders. It's risky but worth looking into. Other than that, it might be nice to run tezzeret the seeker to search up greaves/howling mine/sol ring or mana vault/seat of the synod (seat of the synod can be tutored for zero). Bribery and Acquire are also cards that you might consider in mono blue, as well as Pongify/Rapid Hybridization/Duplicant for removal (duplicant paired with dead eye for flicker effects is just ridiculous).

I'd reconsider Emmara Tandris...she's pretty bad. Replace it with vigor...same sort of effect, but for all your creatures and it works ridiculously well with lots of creatures/doubling season**** Rampaging Baloths is a favorite of mine for token producers. If you're running doubling season, you need to be running primordial hydra and increasing savagery (targeting mycoloth for lots of fun). Fungal sprouting is also a card that's one theme and pretty helpful with big creatures in play.

prison term is pretty sweet for stax. I'd also run Emeria, the sky ruin, kor haven, and maze of ith.

Avenger of Zendikar would be amazing.

Spike Weaver kind of looks like a spider and will give you another fog effect in addition to fog itself.

Get a forgotten ancient...it's awesome. Also, increasing savagery.

Run Valakut...it's budget and beastly in mono red. Also, run Vandalblast...it's cheap, easy to get since it's from return to ravnica block, and so, so good in multiplayer EDH with all the overpowered artifacts that get played. You might also consider running so more draw, specifically staff of nin. It's cheap to buy, one sided draw, and ping removal. Konda's banner is pretty sweet in mono tribal (probably worth the cost).

yeah, zur's wielding isn't great, kind of a fringe card. Glad i could help!

Definitely add more mana**** angels are expensive to cast in the first place, and most EDH start at 40 lands and go down depending on how much mana ramp is added. Run land search cards that are creatures...wood elves, farhaven elf, sakura tribe elder...sorceries like sky shrouds claim, explosive vegetation, cultivate, harrow, kodama's reach etc. Endless horizons is great for a deck that runs plenty of basic plains, given that it isn't immediately blown up. Oracle of muldaya is a must add EDH staple for mana ramp. Consider running more removal too, things like swords to plowshares and path to exile are great for creatures while return to dust and relic crush are great for artifacts and enchantments.

Mikaeous the Unhallowed is worth consideration. Makes your rats much more resilient.

I've seen celestial dawn work well in a sen triplets deck. I think you might want to work on your land base, even adding cheeper cards like terramorphic expanse/evolving wilds and gates would be better than just running straight basics in a 3 color deck. Cards like seer's vision, telepathy, and zur's wielding help you choose a target for sen triplets ability and are good includes.

Huntmaster of the fells rotated out of standard and is fairly affordable ($7), so i'd recommend getting a few for the deck. I'd also recommend upping your mayor of avabruks to 4.