Balance loses Entangling Roots, Remove Corruption, and Barkskin.
Marks loses Aspect of the Cheetah, Exhiliration, Bursting Shot, and Feign Death.
Arcane loses Counterspell, Prismatic Barrier, and Remove Curse.
Outlaw loses Ambush, Grappling Hook, Blind, and Riposte.
Fury loses Pummel and Heroic Leap.
Disc loses Power Word: Fortitude, Purify, Desperate Prayer, and Shadow Mend.
Nothing is absolutely gamebreaking, but it does suck losing out on shields, health regen abilities, interrupts, and gap-closers. A skilled player more than makes up for missing out on an ability or two though, so I wouldn’t worry too much about it.