You know the strengths and weaknesses of the creature you're facing.

Encounter   ✦     Arcane
Free Action      Personal

Trigger: You succeed on a monster knowledge check against a monster that you can see or hear.

Effect: If your check result meets or exceeds the hard DC for the monster's level, you gain a +4 power bonus to all defenses against the monster's attacks until the end of your next turn. Additionally, until the end of your next turn, you gain a power bonus to damage rolls against the target equal to your Intelligence modifier, but not when you deal damage that the target resists.
    If your check result does not meet or exceed the hard DC, your attacks against the target deal only half damage until the end of your next turn.

Published in Dragon Magazine 399.