Wow, I really don't know why I thought I could do that with the dual mana cards. Well, that's embarrassing.
Lightning Greaves was on the border of being included, and that pushed it over the edge, so I'll put that in.
Cavern of Souls is definitely worth including, and will replace a
mountain. I feel like actual combat is a bit of an afterthought here, but
Generator Servant feels ahead of
Hall of the Bandit Lord because you aren't spending 3 life on a haste creature when you really don't need it, whereas the
generator servant lets you power Neheb out earlier. I already put in
Fall of the Titans before reading this, and it definitely deserved a slot.
Chandra's Ignition is 5 mana to make 12 mana, ideally. The board wipe is an added bonus, but cards like
Flamebreak do the job better, even if it produces a few less mana, it will net you about the same amount. A card that would go in before this is
Breath of Darigaaz. In fact, I think I'll include that.
Loreseeker's Stone is a nice way to get you to draw cards, although I think
Staff of Nin would work about the same here while giving you mana. I like
Rogue's Gloves and
Mask of Memory, however, and I think those will find a place here unless I see something better.