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The arrow flies true and strikes the undead cleric for 7/29 damage.
Action 3: Set another arrow on the bow string and shoot another arrow at the cleric at B12 of the main fortress map. @rolld20

Shake shake shake, you roll the 20-sided die.

You rolled a 8.

The 2nd arrow also hits its mark doing another 7 damage to the mage (14/29). 15 life remains.