poised for (something)
Braced, prepared, or ready for something that is about to happen. We were all poised for the huge workload the project would bring. The two combatants stood facing each other in the ring, poised for the fight to begin.
poised for something
ready for something; in the right position and waiting for something. The cat stared at the mouse, poised for action. The army was poised for battle.