This is an evolution of my Araña C'Thun Mage, where I sadly drop the namesake Dragoncaller Alanna to instead play Dragoncaster and cast Iceblood Tower on turn 6. This leads to casting C'Thun pieces from your deck, as well as other stalling spells until we pull off the Brann Bronzebeard -> 2x Conjure Mana Biscuit -> C'Thun, the Shattered to have a 60 dmg OTK.

The deck is still early in development, where I could easily see it be more minion-heavy, but at the same time, with Arcane Brilliance giving you a "tutor" for Tower, I can feel comfortable with more spells in my deck, since I will have up to three or even four Towers, which they themselves serve as a form of card draw.