Hi @AlexKibo88,
We reviewed your save file and believe you are referring to step 170, where the villain attacks Gamora and Drax helps with the defense.
We noticed that the rule book has been updated to clarify:
“After [enemy] attacks you” refers to the player whose character defended the attack.
We will update our code to align with this rule.
However, in your case, even with the updated code, card “19007” still cannot be played because there is a Guard in play (card “45161”).
Thank you for your understanding and support!