If Patient Rebuilding let you target yourself then I'd be totally on board, as it could open up tons of build around potential, fueling your own graveyard strategies and encouraging you to manipulate the top of your library for maximum value
Whenever you cast a colorless spell, copy it
There should be more consistent triggered card draw, and a significant number of enchantments to let you draw off creatures entering and smoothly keep you from stalling out
These are some of the best cards Magic has ever seen, each capable of creating all sorts of new decks in Standard
More importantly, the exiled creature is gone for good: Unlike O-Ring effects like Leyline Binding, removing Solitude won't bring the exiled creature back
Ok Belle & Beast - Certain as the Sun [Foil] #132 (Lorcana Attack of the Vine) Details All prices are the current market price