You and your companions form an immovable wall to withstand the enemy tide.
Close burst 3
Target: You and any ally in the the burst
Effect: The target cannot be knocked prone, pushed, pulled, or slid until the end of your next turn. Also until the end of your next turn, when you use inspiring word on an ally, the ally can stand up as a free action.
Stand Fast is an utility power available to warlords at level 6.
Stand Fast was introduced in "Born to Lead: Warlord Essentials" by Robert J. Schwalb in Dragon #381.[Dr381:32]
CharOp Evaluation: Average [Charop Warlord]
Negating forced movement is of questionable value as most of Team Monster isn't built around exploiting it. That said, when it's needed, this can completely shut down such tactics, making it worth considering if you suspect such shenanigans.