Arcane fire rises up around you and binds itself to your body, its heat only felt by enemies should they decide to risk injury and strike.
4e Power Usage::Daily Arcane, Fire
4e Power Action Type::Standard Action
Personal
Effect: When a creature includes you as a target of its attacks, it provokes an opportunity attack from you. Make an opportunity attack with the flames surrounding you (Intelligence vs. Reflex). You deal 1d8 + Intelligence modifier fire damage with this attack. Lasts until the end of the encounter or for 5 minutes.