Hi, I found this info on the KR forums. It is not fan-made*.
About enchanter and sage, they are not rank 8, currently. I don’t know if it will be added later, rank9, or rank10.
Enchanter sage: http://www.inven.co.kr/board/powerbbs.php?come_idx=4185&l=11221
Edit, earthtower guide published: http://www.inven.co.kr/board/powerbbs.php?come_idx=4185&l=11291
Some key points, I believe our forum Veritas has a much better guide, so…
Korean guide points:
Short level recommendation:
1 ~ 5F: DPS 270 ~ / 265 ~ Support
6 ~ 10F: DPS 275 ~ / 270 ~ Support
11 ~ 15F: DPS 290 ~ / 280 ~ Support
16 ~ 20F: DPS 300 ~ / 290 ~ Support
Recommended AoE DPS:
Warlock2 -> AoE with spirits.
Reiter3 -> AoE (missile defence of mobs on first floor is hard though).
Single target DPS:
Fletcher3 + Mergen -> need to shine at boss floor. Very specific.
Recommended supports:
Linker Chronomancer -> Link & Pass, haste, etc.
Cryo3 Chrono3 -> standard, frost pillar & chrono skills
Linker3 -> strongest link.
Sage -> Missile Hole vs magic & Missile
Cleric healers:
Cleric2 is mandatory.
Need Daino.
Priest3 -> Stone skin & revive.
Oracle -> counterspell vs magic.
Plague doctor -> Healing factor mainly.
Diev3 -> All statues welcome.
Recommended combination:
-AoE 1
-AoE 2
-Single target (+linker) OR linker
-Chrono (must be chrono linker if you bring a single target)
-Healer
Required items:
-Barrier scroll
-Dispellers