Monk/?

What should i have some second proff as monk give me some tips please

Mesmer Skills
Inspired hex
energy tap

Necro
OoB

Kinda vague you need to tell us what you want your monk to do... If its just for standard healing i would say Monk/Necro... But when i go pure healing in PVE i dont take any skills from my secondary profession... so Monk anything works pretty well - for ease of killing the doppelganger i would say go Monk/Mesmer though there are probably extremely easy ways of killing him using only monk primary skills.... anyway - tell us what you want him for and we'll help more.

defently mesmer, i've been ele but there is no better thing then mesmer, you can use all sorts of energy management skills, so i guess you are better of with mesmer, PvP and PvE wise

if im going with mesmer that should is use for mes attb then?

Inspiration :

Inspired Hex
Energy Drain {e}
Mantra of Recall {e}
Power Drain
Drain Enchant

are all helpful energy management skills

so i should put in insperation?

Yes definitely

9-10 in Inspiration should be perfect