The general used to be Sedris, the Traitor King, but the deck didn't need him, as he avoids abuse so well with unearth's replacement clause causing exile. Thraximundar replaced him because I felt the need for more removal. Thraximundar also just happens to have synergy with my sacrifice effects.
Since you have Trinket Mage, you could easily search for Expedition Map in addition to other artifacts. I actually used it to grab the necessary B to cast my spells. In addition to that, you'll be finding other players have access (or money) to cards like Kor Haven or Maze of Ith so Tectonic Edge is one of your answers.
Isn't Edicts beneficial to Thrax too? Just waste your own creature and your opponent's and your own boss will get 2x +1/+1 greater. You can use that to swing an even more powerful Thrax if your opponent has one more creature left. You also have to think that your opponent might have more creatures than you.
Did you see my edit that stated the purpose of the deck?
The general used to be Sedris, the Traitor King and was strictly based around the ETBF/LTBF effects that he abuses. The purpose of the deck remains the same as before, it just runs on its own and Thraximundar is just powerful removal.
Well, we both have different ways on using our color. However, I'm wondering how effective is your current decklist.
Have you tested them on different occasion in multiplayer games since your deck is designed for that? If so, were there any times that you draw that card and not able to use it in certain scenarios other than its cost?
with it that betrays i know it costs alot but in my play group someone always plays a mana flair effect which allows me to cast sorry i was thinking about my groups play style but he if you get a hold of a Mana Flair try them out