Balance changes

Dagan Gera: This character's second ability makes him too vulnerable. He needs to self-heal/damage reduction while the ability is active.

Cal Kestis: decrease the healing of hird ability or increase cooldown

Darth Sion: Reduce the number of charges on his passive ability and make it reset on every kill. Make his passive ability charges visible to the player. Make him cast his first ability in any direction from the enemy.

Yaddle: slightly increase the cooldown of the blinding ability