You need more mana accelerators to cast your big spells :L

+1 for the Elephant Graveyard+Mutavault tech

Gotta love that $20000 price tag (+1)

Still kicking, eh? Maybe some new B.F.Z. lands will fit into this very budget, quite evidently affordable deck :P

I built a 60 card land deck once and it ran terrain generator, that would allow you to accelerate mana. it was just an issue of drawing cards

This is as close to madness as I think possible. Inspiration must’ve been a bolt taken to the extreme. Seems like it could run into trouble long game however.

I'd have much more respect for this deck if you were running a 5 colour commander. Running dark depths breaks 2 of the deck building rules. Also dark depths is a little op, assuming you're allowed to play it from your command zone, With tolaria west, thespians stage and other cards I can see you getting a 20/20 pretty reliably and quickly.

You could make a perfectly legal but pretty bad all lands deck using Arixmethes, Slumbering Isle as your commander land

I feel like you could actually have a real creature as commander. one that likes lands and doesn't like anything else.

I am not so sure that a commander like that really exists right now... there are commanders who like lands (tatyova being a great example) but none that don't also really want something else as well (like spells to get more lands into play for example)