I well known that blue is the worst color in AFR I'll try to balance this color a little bit to keep up with the others. Made this change because I believe that the intended role of Mordekainent's polimorph was to help out the chip damage strategy, but this is the worst common card in the set. The passwall adept can mitigate the fact that both 2 drop creatures in blue are pretty bad and sinergizes well with the ub and uw plan, and provides an early blocker to survive the aggro while being a good end ender.

Other plans to improve blue may be
Split the party > Sleep
Charmmed Sleep > Encrust
Sudden Insight > ??

In the watchlist that may get out
mimic
plumet