The vine strikes at the newly large target. Then Tellos slashes it, healing Jemus somewhat. The vine looks very badly damaged.

Spoiler
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Attacking Tellos: (1d20+10)[19] Critical threat check: (1d20+10)[22] Damage: (1d6+8)[14] Critical damage: (1d6+8)[10]

Jemus is stabilized and healed for 7. Everyone in the basement needs to make another Fortitude save; Tellos already did.

Alamryn, Jemus (theoretically), Semult, and Trawyn are up.