Prophetic Titan is in a weird spot now in this environment. I had originally added most of the delirium cards to try and anchor that mechanic in the list, but now that the list is more complete, he seems out of place and like he'll end up in a lot of sideboards.

Mad Ratter on the other hand feels more synergistic in the environment. Most colors have card draw & some kind of token synergy or payoff, so he can fit into several archetypes. I think my favorite is in a tokens aggro deck with Gallia of the Endless Dance. Also broken with a Skullclamp, but what token strategy isn't? I digress. Most colors have ways to draw cards: has all the cantrips, has Night's whisper et. al. as well as Dark Confidant. has Faithless Looting, Burning Inquiry, etc. is the least well supported for card draw effects, but it does have Tireless tracker for clues, and Fecundity which can be quite powerful with tokens. I am not exactly happy to add yet another red card, but I really want to test it out.