Advice on building OTJ sealed pool for arena direct

I'm planning on playing the following deck. Do you think there is any better build with my pool?

I'm trying to play around the following payoffs (besides the big bombs Terror and Crackle):

I have most treasure producing cards in the deck (besides gold pan and mine rider since I have few outlaws) for the payoff of Magda (also to help double spelling and maybe a big Crackle?). Should I also add gold pan?
I have three double spelling payoffs (Kraum, pulverizer and Geralf) but I have no idea how easy that is. Should I add some Seize the Secrets?
Then, there is also the crime theme with payoffs Vadmir, Magda, Bandit's Haul and Intimidation Campaign. But I'm not sure I'm really doing that many crimes...

Some other thoughts:

I play Visage Bandit for the possibility of copying Terror. But I don't think it is very good if it copies anything else.
Not very good mana...
Green does not seem bad but I have no green deserts
I'm unsure about Akul
Of course, there is also the option of going white instead of blue or black to play Bruce and Merriment (double pip though) but the rest of white seems pretty bad
EDIT: Now I woke up convinced that I should play 18 lands with such a mediocre manabase, possibly cutting the Redrock sentinel for a swamp