I feel like Word of Empowerment needs something more. The d12 damage is a big improvement, but the Scribe is giving up their standard action to make someone else's standard action more potent if they hit. If they miss, that's two standard actions completely wasted. Contrast that with the Warlord's Commander's Strike; that allows the other character to attack out of turn, and still get a regular turn. And there's a damage bonus attached, too!
I agree; it was sort of a filler, and having taken a second look thanks to your post I found it lacking. Here are the updated versions of each of my at-wills, in case people don't want to open a PDF every time they want to critique:
Word of Empowerment, Scribe Attack 1
Your words swirl around an ally, granting their next attack astonishing strength.
At-Will * Arcane, Force, Implement
Standard Action,
Area burst 1 within 10
Target: Each ally in the burst
Effect: The next attack made by the target before the end of your next turn gains a +1 bonus to the attack roll and deals an extra 1d6 force damage on a hit.
Level 21: 1d6 + Intelligence modifier force damage.
Word of Draining, Scribe Attack 1
A foreboding feeling sweeps the foe as his life force is siphoned into your ally.
At-Will * Arcane, Implement, Necrotic
Standard Action,
Ranged10
Target: One creature
Attack: Intelligence vs. Fortitude
Hit: 1d6 + Intelligence modifier necrotic damage.
Effect: The next ally that hits the target before the end of your next turn gains temporary hit points equal to your Intelligence modifier.
Level 21: 2d6 + Intelligence modifier necrotic damage, and temporary hit points equal to twice your Intelligence modifier.
Word of Illumination, Scribe Attack 1
Your powerfully illuminating words light the way for your allies.
At-Will * Arcane, Implement, Radiant
Standard Action,
Ranged 10
Target: One creature
Attack: Intelligence + 2 vs. Reflex
Hit: 1d8 + Intelligence modifier radiant damage, and the target cannot benefit from partial cover or partial concealment until the end of your next turn. In addition, the penalty to attack rolls against the target imposed by superior cover and total concealment is no worse than -2.
Level 21: 2d6 + Intelligence modifier radiant damage.
Word of Motion, Scribe Attack 1
Your words create the motion necessary to shift the battlefield to your liking.
At-Will * Arcane, Force, Implement
Standard Action,
Close burst 5
Target: One or two creatures in the burst
Attack: Intelligence vs. Reflex
Special: If the target is an ally, they can choose to be automatically hit by the attack and take no damage.
Hit: Intelligence modifier force damage, and you slide the target 1 square.
Level 21: 1d6 + Intelligence modifier force damage.
