The big colorful monstrosity shakes itself shaking away colorful splotches of itself that midflight turn around and home in on you.
Spoiler: Attack against everyone.
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Labs attack: (1d20+6)[16] Touch attack.
Rosywin attack: (1d20+6)[15] Touch attack.
Kalliste attack: (1d20+6)[12] Touch attack.
Elexis attack: (1d20+6)[19] Touch attack.
If you get hit you get (1d6)[5] Acid Damage.
And Need to roll a DC 18 Reflex save or fall down. This counts as a magic effect: Spell resistance: (1d20+11)[28]
While shaking around it attacks Labs with a gurgling bite.
Spoiler: Attack against Labs
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Attack: (1d20+11)[28]
Damage: (4d4+1)[10]
When you get hit make a Will save against 18 or be sickened.