Kayle is a nervous, yet willing, member of a small group of three Zamorakian cultists encountered during The Blood Pactquest. Kayle has made a blood pact with his two companions, Reese and Caitlin, to go through with the ritual, although he was bullied into the pact by Reese's threats to cast a curse upon him.
Kayle is the first cultist you must fight, and uses ranged to attack the player and Xenia, who is hit for 1 damage and her health bar is emptied, though she claims she is more gravely wounded than she is in order to test the player. In combat, he attacks with ranged, and when he reaches full adrenaline, he will use the Deadshot ability.
When he is defeated, the player can ask Kayle questions, and then he can be either spared or killed by the player. He drops Kayle's chargebow regardless of the player's choice.
Kayle never moves out of his square. If a player is near death and out of food, they can simply stand into his square and rest instead of running back to Xenia. If you run back, he would hit twice, possibly killing the player. The player can even use the LumbridgeHome Teleport to escape without being interrupted.