Kryx RPGThemesCreatures
Prerequisites: The ability to cast at least one spell

You have practiced casting spells in reaction to your enemies’ movements. When a hostile creature’s movement provokes an opportunity attack from you, you can use your reaction to cast a spell targeting the creature, rather than making an opportunity attack. The spell must have a casting time of one or two actions and must cost equal or less than half your mana limit or psi limit (rounded up).