A few changes that would make SCH go from a downgrade to an upgrade, while still losing many of the skills cut in stormblood.
Remove Ruin mastery that turns ruin into Broil. Instead:
Disastrous Ruin- Ruin's mp cost raises to 1.33 times that of Broil II. 80 Potency AOE within 8 yalms of the target. 20% chance your next ruin will be instant cast.
Shadowflare- Places an Aoe at a given area dealing 25 potency a second over 30 seconds. There is a 15% chance that each bio/bio ii or miasma ii tick will reset the timer. Can only be reset once every 15 seconds. While already active Shadowflare becomes a 250 potency aoe around the target, instead of a placeable field. Bane will 100% reset the cd. CD of 60 seconds.
Dissipation- Healing spells increased by 20%. Lustrate, Indomitability, Sacred Soil, Excogitation, Bane and Energy Drain have their potency increased by 20%. You gain III aetherflow stacks. If used while Fey union is tethered to a target, the target has 20% of their mp,TP and hp restored, a barrier of 20% of their is added to the target. Will overide any Galvanize or Nocturnal Benefic/Helios. Cannot be overidden, except by Galvanize or Nocturnal Aspected Benefic/Helios of a higher potency. Successfully using Summon or Summon II removes the effect of Dissipation. Duration 30 seconds. Recast time of 180 seconds.
Virus- Removes the effect of Addle. Target has 15% reduced attributes for 10 seconds.
TRAIT-Brilliant Broil II (instead of just broil to broil ii upgrade)- Embrace has a 20% chance of causing your next broil II to be instant cast. Upgrades Broil to Broil II. (Opening more opportunity to weave.) Duration: 20 seconds.
Deployment tactics. spreads galvanize onto nearby party members and resets its duration. If used on an enemy, spreads Virus to surrounding enemies and resets its duration. Eye for an Eye spreading has been removed since it is a role skill.
Fey union- When used with eos, damage taken is reduced by 10% on top of a ~350 potency, realword healer potency every 3 seconds. IF selene is attached, damage done is increased by 5%, spell based healing received is increased by 50% (Selene will not heal the target.)
If you feel this is overpowered, take a good long look at AST.
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Current Changes to SCH:
Bio removed.
Aero removed.
Bane nerfed from the removal of Bio and diminishing returns.
Blizzard II removed.
Miasma II removed.
Shadowflare removed from the GCD on a 60 second cd.
Spell speed pet action proc removed.
Virus removed.
Eye for an Eye placed as a role skill.