Each day (requires a long rest) DM rolls 1d6. You do not know the result of the roll until you use the shroud.
1-2 = A bad day = your second personality is nagging your ear off all day, your words of wisdom lack their usual power and fall on deaf ears. Those who hear them just roll their eyes. Your spells have half effect for that the day
3-4 = a normal day = an average day
5-6 = a good day = as your bonus action you can cast any supportive or healing spell (uses a spell slot as normal). This applies even if you have cast a spell as your action. You cannot cast two attack spells in one round.
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