Setup: Reduce your threat by 3.

Action: Raise your threat by 3 to ready Éowyn. She gets +9 until the end of the phase. (Limit once per game for the group.)

"But no living man am I! You look upon a woman. Éowyn I am, Éomund's daughter."
–The Return of the King

Permanent.

Setup: Attach to a hero.

Attached hero gains the Rohan trait.

Attached hero gets +1 while attacking with another Rohan character.

"Rise now, Meriadoc, esquire of Rohan of the household of Meduseld!"
–Théoden, The Return of the King

Response: After Éomer commits to the quest, spend 1 resource from his resource pool to immediately declare him as an attacker (and resolve his attack) against an enemy in the staging area.

...he was young, and he was king; the lord of a fell people.
–The Return of the King

Action: Spend 1 resource from a Rohan hero's resource pool to put Elfhelm into play from your hand under your control. At the end of the phase, discard Elfhelm if he is still in play.

"...my lord sends word that we must set ourselves in readiness; orders may come for a sudden move."
–The Return of the King

Action: Discard 1 card from your hand to give Éowyn +1 until the end of the phase. This effect may be triggered by each player once each round.