Increased MP costs

[Rentahamster]

Even with a MP pool of 1000, I still run out of MP sometimes on NMs if I can't find enough mobs to Siphon.

I'd rather have the devs implement more skills that make MP more useful so you'd have more ways of using it. For example:

Guildmark skill that gives you a new normal attack that is stronger, or has a nice debuff proc, but costs a small amount of MP to use.

Ability that increases the MP cost of your next spell 50% and increases the damage of your next spell by 25%.

Ability that converts 15% of the damage you take and subtracts it from your MP pool.

[Fleur]

Even with a MP pool of 1000, I still run out of MP sometimes on NMs if I can't find enough mobs to Siphon.

^^ This. Shadowsear costs 88 MP too! And it is not a matter of "better MP management"; when fighting NM's the battles are long and I pretty much do nothing but cast, since phantom dart does a paltry amount of damage compared to DoT spells. And a lot of of healing is needed too which can drain MP quickly at 22 or 32 MP per cast.

Outside of NM's, I agree that MP management is very easy, but I certainly don't want to see increased MP costs -- NM's are hard enough without running out of MP, which is something that DoW's don't have to worry about (well, except for that when the mages run out of MP for healing they will probably be dying shortly, lol).