Mesmeric Orb certainly seems to warrant a spot in this deck. It's a repeatable form of milling that doesn't require mana to activate, meaning that it's value increases as the game continues. Mind Funeral also isn't "trash" in this sort of deck, because if you consider the fact that most decks run around a 20:40 spell to land ratio, it will on average mill about 12 cards when you cast it, or because it's more like 23/37, about 10-11, which is still around 4+ "damage".

Char may not cut it for burn, but in a deck that is likely struggling for playables, it doesn't seem that bad. Plus it has "win the game" on it when you are playing against Charbelcher decks :P