If I were you I wouldn't run
Cabal Coffers in this deck, as you don't run enough swamps to make it work, this means most of the time, this card will be a
dead land drop for you unless you have a reliable way to go get
Urborg, which you don't.
If you want to play it, I'd suggest running
Weathered Wayfarer (replace a suboptimal ramp card, like
Black Market (this card is usually too slow unless you can abuse it the turn it is cast, which is usually more of an Aristocrats thing).
I'd also suggest to cut
Temple of Malice,
Temple of Silence and
Temple of Triumph. Three tapped lands is too much for a 3 colored deck. There are better lands you can add instead that won't enter the battlefield tapped. You run no green and no blue, so everything that slows your deck down must be cut.
Ruthless Knave: not a fan of this card, doesn't seem like it's that useful since you won't really have enough fodder to make it work reliably (more on that later). I feel like
Treasure Map /
Treasure Cove would be a much better option, especially since you run
Enlightened Tutor to go fetch
Smothering Tithe to go along with it.
As far as tokens are concerned, I'd cut
Anointed Procession. It's an excellent card in token decks, but with so few token generators, I don't think running it is worth it.
Assemble the Legion is great in almost any decks though, definitely keep that. I'd also cut
Ophiomancer, since it only creates a snake when you don't have any snakes. A more reliable token generator would be
Bitterblossom, if your budget allows it. If you were going for this card for the deathtouch to protect yourself, consider running
No Mercy instead, to go along
Crawlspace and
Ghostly prison, it's a very good protection card.
I'd also cut all recursion from your deck. Seems like your deck may have too many subthemes going on, and I don't think 4 sources of recursion (especially expensive ones) will be reliable. Cutting these 4 cards would allow you to run other cards in your other categories, and I feel like this would probably be better to focus your strategy.
You could also run cards that force your opponents to kill each other, like
Varchild, Betrayer of Kjeldor, or
Rite of the Raging Storm or
Disrupt Decorum.