Let me post my opinion for WL/W combo, not shown frequently. I play WL/W/M 60/55/55 as alt in EU-Macantacht. Started playing WL/M initially, really quite nice combo, but decided to follow the WL/W road after, since its alot more fun and nice to play imo. So lets summary
- Slash: Magic dmg. 225 range. Adds magic bleed with extended duration. And puts debuff at target that takes +30% dark dmg with just 1 hit (lvl 50 elite). But most important ... it does not trigger GCD
- Berserk: hehe, i love it

+36% magic attack AND +36% cast speed for 30s every 60s. Have a look again plz..+36% cast speed..
- Enraged: Adds 20 rage and 20 focus. Nice way to get focus up except for Heart collection strike. Furthermore its cd is reset with certain possibility every time u use weaken strike, psychic arrows, warp charge. Also with 60 elite it restores 10% hp, a more than desirable healing that lacks from non-healing combos
- Defensive formation: meh. just mentioning that it adds running speed in case u need to escape faster from wipes
- Psychic Arrows: I love it. +50% dmg from normal-WL psychic arrow. In conjuction with berserk and Slash is nasty and forms ur most dmging skill. And spammable

Plus it adds 20 rage at each hit. But who needs rage other than slash..
- Mind transference: Well thats why u need rage. For every 35 rage, u gain 1 psi. and with 70-elite at full rage, u gain 6 psi at 1 click. Yeap. 1 psi per 20 rage +1 psi bonus.
Good luck to all who follow the wl/w road. I strongly suggest it. Just try it.
Have Fun
Edit: Forgot to say. About the wl/m combo. Indeed quite nice. Very powerful and strong party-support. I m just disappointed from ppl in game general. supportive roles r dying in rom. Probably u ll debuff the bosses at max with ur skills and all that u ll hear at the end is that u did 50% less dmg than party mages, while the nubs dont understand that 50% of their dmg is cause of u (aoe cast speed and increased fire dmg debuff at boss)...
Fineas R76/S77/W50
Tsipis WL60/W55/M55
(EU-Macantacht)