Magic Missile, three missiles, three targets: Separate damage rolls, or once for all of them?

Empowered Evocation + int mod, if thats on one target, is that still +int mod or +int mod X3?

Monsters with multiple melee reach get Attack of Opportunity from furthest?

Monsters w/ multiple melee reach get AoO from furthest? Ogre’s large & has only 5′ melee reach; AoO @ 5′ reach?

Brute bugbear

Can you crit with a spell?

Wizards have insane damage (Meteor Swarm). Will other classes, like Fighters, be able to keep up?