As the cultist stabs at Rumble, he hits nothing but a bunch of leaves, which burst forth, surrounding Baruk and the Cultists and providing them an opportunity to move while the Leader is distracted.
The mountain turns her focus to the leader with her eyes glowing bright blue and frowns slightly. "Perhaps I should have clarified. Stay down!" she shouts, as she swings her pick at his left kneecap.
Spoiler
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Assuming Rumble only took 8 damage last round, she sits at 59/62 HP with 1 THP remaining.
Minor Action: Natural Terrain Understanding - Burst 3
Effect: Each ally in the burst gains a +2 power bonus to AC and can
shift 2 squares as a free action. This should affect Baruk, Auldfaxe, and the prisoners.
Move Action: Minor Action: Unseelie Eyes
Effect: Until the end of the encounter, I gain Darkvision. Additionally,
as a Free Action, I can toggle on/off a CB2 of Bright Light from my Eyes.
Standard Action: Batter Down Vs the Leader
(1d20+14)[22] vs AC, (2d12+8)[25] damage and prone on a hit.