Mono red fullaggro (low mana) (Casual)

This is my first mtg deck ever, probably im going to replace some creatures but not in any time soon, i hope you like it, and may Drakuseth's flames burn within your heart.
-First update: i removed 2 Rummaging Goblins because their purpose on this deck has ended as my deck is getting better and better, so no need to discard useless cards and so on.
-Second update: i remove my Spitfire Lugarcs in order to lower the mana cost of the deck, i replaced them with 2 Viashino Pyromancer, the're more suitable for a super-aggro red deck.
-Third update: in order to lower the mana cost in general but in particulary for my 3 commanders i've added 2 Ruby Medallions and removed 1 Worldifre and 1 Mountain.
For now i really think that this deck is pretty good, is incredibly aggressive, low mana, good mana ramps and good spells.
-Fourth update: i think that Akroma can be a nice option against blue decks, so i guess i will switch Purphoros or Ryusei with her against blue decks