[Autumn]

Lunar Lunatism currently has no downsides to using it, while giving them many, MANY benefits, however I do like this, you basically just give out the fact you're a vampire, for really good buffs that just make you downright scary to deal with. As it should be when fighting a vampire, however it is very strong given everything.

I have a suggestion to make this a cool skill to use, and the OP has the right idea but could be executed better.

The skill now costs 6M to use, but the buff it provides will last until your essence is drained to 0
The skill now drains 25 Essence per round (But this is doubled during the day, when the moon isn't showing)
Silvermists still uses 33% of your essence and then heals 3 per essence, but the healing effect is increased by 1.5x (balanced off by Lunar Lunatism costing essence per round)
You cannot use banquet during Lunar Lunatism.
After Lunar Lunatism ends, you gain a debuff that prevents gathering essence for 3 rounds.

What do you think Dev? These suggestions are mostly because Lunar Lunatism has absolutely no downside to using it, not even an FP cost or Essence cost for that matter.