Unshakable
Text Tactical Battle: Target an Action card in your discard pile. Play it for one of its Battle abilities as an additional action. Remove this card and the target card from the game, even if out of play, after that action ends. (Observe restrictions on the ability's number of uses, such as the default "once per turn.")
Un point de discorde : Je croyais (et le crois encore) que si on a pas de tacticien dans la bataille en cours on peut jouer unshakable si on en controle un, redréssé, ailleurs. Or on m'a rapporter que non.... or il me semble avoir toujours joué comme ca et vu jouer comme ca et aucun head judge n'a rellévé....
J'ai eu la réponse dans le rule book ....
Tactical
An action with the Tactical keyword can only be performed by a Tactician Personality (see Perform). A Tactical action that is not performed by any card can only be taken if one of your unbowed Tacticians is at the current battlefield. Each Tactician can only perform one Tactical action per turn.
Donc pas de tacticien redressé pas d'unshakable