Those little critters are really shifty and this let them survive much to long. Kourni inwrites a rune on the ground and whispers words that praise the sun. A burst of light spreads from the rune, attacking them and protecting her allies.

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Rune of undenieable dawn
Burst 3 (enemies only) from A16 to C18
(1d20+7)[11] vs AC T16
(1d20+7)[13] vs AC T18
(1d20+7)[18] vs AC T19
(1d20+7)[18] vs AC D2
(1d10+4)[13] damage, miss half damage

Creates a zone (sustain minor) that grants +2 to defenses to all allies