A couple suggestions: Encase in Ice is better as sideboard tech rather than taking a place in the mainboard. I'm not sure what your budget is, but you should add fetches and shocks if you can afford them. Going full Grixis could help with removal as well as getting more dragons in the deck. With red you get Lightning Bolt, an absolutely amazing spell. Overall, nice work.

Hi Gannondorf!! You think Ice Cage would be better than Encase in Ice ? Right now fetch lands are above my budget, but in the future I will add them. You think replacing 4x Dismal Backwater with 4x Crumbling Necropolis would be a good low-price option? I will definitely consider Lightning Bolt after adding some red lands!!

I really appreciate your sugestions! Thanks!

Crumbling Necropolis would be a very good low budget choice. On the topic of tapping creatures, I would suggest taking a look at Containment Membrane. It can be cast after another low CMC spell to take advantage of the alternate casting cost.

Furthermore, looking at your mana curve, I suggest you put in some one drops. There are pretty good cheap hand disruption spells like Duress and Despise for that give you something to do on T1.

One more thing-you're at 61 cards. Bring it down to 60 :)

I will make some test plays with your suggestions. Containment Membrane seems like a good replacement for Encase in Ice. About bringing the deck down to 60 cards, I think Jace's Ingenuity is not very essential since I have 2x Diabolic Tutor...

Thanks again! I will report back after playing some times.