Your shout warns comrades of imminent danger in time for them to react.

Daily   ✦     Martial
No Action      Close burst 10

Trigger: A surprise round begins, and you are conscious

Target: You and each surprised ally in the burst

Effect: Each target is not surprised and gains a bonus to AC and Reflex equal to your Intelligence modifier until the end of your next turn.

Published in Martial Power 2, page(s) 86.