Cnidaria stun for 5 seconds at a time which leaves you with a 1 second window to get in an attack so IF one grabs you, face it and hold down your attack button with pike or sword equipped and hope you can kill it before it kills or knocks you out. When fighting a swarm of them, the stun effect overlaps and you’re SOL. DON’T FIGHT MORE THAN 2 AT A TIME.

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