MOD NOTE: Merged 2 topics because they're VERY similar. Please treat both posts as the opening post. -Kael
Skip to second post, I deleted the other topic.
READ THE POST BEFORE COMMENTING
I'm not suggesting to remove abilities, but to make each more powerful (enough to compensate for the loss of two) and restrict it to one talent tree.
Lethal poisons = Assassinations only
Slice and Dice = Updated and moved to combat only
Rupture = Subtlety only and doing significantly more damage
I'm also suggesting replacement temporary enchant mechanics for combat and for subtlety, that impact damage but are not poisons.
The end result is you end up with a rotation that you WANT to use, not that you HAVE to use become of some constricting talent bonus such as venomous wounds or sanguinary veins. The idea is to make these abilities so potent, that if you ignore them from your rotation, you might as well be an arms warrior without mortal strike.