Have you considered more enchantments that benefit from Nicol Bolas's ability? Things like Waste Not, Megrim, Liliana's Caress, Extra Arms (makes an additional player discard their hand).

If you're interested in more spells that steal things I could give you a long list too.

What about Corrupted Conscience or things like Clone?

If I bring CommanderOfBolas here, he might have an orgasm...

elpokitolama because of the sheer awesomeness?

Canadian Cruel Control in Commander? How can even a Canadian be cruel? It's too unrealistic to be awesome... :<

Mmmh... how about Wrexial, the Risen Deep? Cuz steal. :>

Love Mr. Bolas! +1

Sarkhan the Mad? He's a minion of Bolas.

if you're willing to spend about $15, Treachery is arguably the best "steal things" card ever

Augur of Bolas might also be good. You have a lot of spells.

Jin-Gitaxias, Core Augur, Ugin, the Spirit Dragon, Tamiyo, the Moon Sage, Cryptic Command?

gnizz00 If you going to offer suggestions, please justify them. Simply spewing cards does not provided constructive or even worthwhile feedback or input.

YAY FOR MANIPULATION!!

Academy Ruins + Mindslaver is all Bolas. Even once makes it worthwhile.

love to make control creautures i don't own :)

Callous Oppressor - i thinkg there wasn't many creatures in EDH that shares type with other :)

Dragonlord Silumgar - lates and (almost) newest card that you should love too :)

Hypnotic Siren but i think its cost to much

Sower of Temptation - also think about this creature card.

You could easily add the artifact lands in your colors. Would give you reason to add Trinket Mage and Tezzeret the Seeker . Tezzeret even fits your decks theme since he works for Bolas.

CastleSiege but why would I run the artifact lands? I don't see the logic in a such a decision.

Play land for turn

Play Tezzeret and/or Trinket Mage

Go get one/two additional land(s) for free.

Tezzeret puts them into play and Trinket mage puts it into your hand. It's mana ramp for your colours which is hard to come by outside of mana rocks. Keep in mind they can grab your rocks too.

Play Trinket Mage. Tutor for Mana Crypt and put it into play.

Trust me, it's good lol.

No Conjurer's Closet?

Quicksilver I am going to have to ask you to explain your suggestion. I take comments seriously and would like it if people justify their suggestions, not simply state a card and move on. Why would I play Conjurer's Closet? How does it fit into my theme? What benefits does it have in the deck as a whole?

Many of your creatures have ETB triggers, with Conjurer's Closet you can utilise those effects multiple times, useful for your Diluvian Primordial, Ixidron and Mindclaw Shaman. Looking at the triggers, I find it interesting you run Disciple of Bolas when you run so few creatures.

Quicksilver I steal other creatures and often use Disciple of Bolas for those. However, it never hurts to gain some life, especially with Kokusho. That being said, conjurer's closet is a poor choice for this deck.