If Rey was to play her last card as an upgrade Akbar's ability kicks in then she gets her additional action. Just like Jango would role in if she had taped in using holdout with ambush. Then she would get her 3rd action. When a trigger is met it triggers

My personal favorite is playing Veers, Jango. Against Jango, rolling in Veers and when they role in their Jango I roll in mine. It usually disturbs them so much that after I explain to them that it is their turn they often forget to disrupt any of my dice.