Embrava is the best DD drug ever. At 500 enhancing skill you can get to 6 regain, 72 regen, and 34% magic haste, for 12.5 mins with AF3+2 golves.
Kaustra: It's a super-helix, with damage dependent mainly on int like normal helices, and duration dependent on dark magic skill (roughly 1 extra tick every 11 skill). Can be AoE'd, and while not as super-useful all around as Embrava, makes some things, like certain missions and BCs, a total joke (Up in Arms in 5 mins solo, could probably do it faster not bothering to buff first).
Right now, SCH's role is of a very good utility healer for easier content (Salvage, Dyna, Nyzul and Neo-Nyzul, etc), plus an Embrava whore. For content you actually need nuking power, SCH is good (I'd say better than BLMs for single target), but people tend to ask for BLMs still. With the healing magic formula changes, SCH will be able to co-heal effectively in the high-end content, along with the main WHM.
Frejan - Ragnarok
SCH 99 PUP 99 WAR 99 RDM 49 NIN 49 SAM 49
Windurst Rank 10, ZM+CoP: The Last Verse, ToAU: Eternal Mercenary, WotG Champion of the Dawn.