I really don't understand the purpose of Foriysian Totem but I could just be missing something.

It can be a creature, and, more importantly, is a nonland mana source. This means that you can cast Bust if an opponent gets too many lands out without having to worry about crippling your own mana base, since you have Darksteel Citadel s for colorless mana.

Yeah a lot of people try to tell me to get Mind Stone 's etc. but 2cmc is pretty full, so I would never play it. But I figured a 3 drop isn't bad and I would play more often.

Crack the Earth ?

No Rain of Tears ?

Or Roiling Terrain !

decks that play boom bust should be playing a set of fetch lands, as you can target you own fetch then sac in response and not be down a land plus with crucible they can be re-used