you can open your blitz cards from halowaypoint.com or the game. how do i open my cards from? the answer is go to my profile than edit the game halo5 to halo wars 2 than click Servilce record than click the service record icon thain click Blitz than click blitz/Decks again than you will see the Unopened packs. that how i open one of my blitz cards for halo wars 2.
I already made a thread on this with an easy to follow link.
https://www.halowaypoint.com/en-us/forums/38bd6e2ebbb14e5b9b359bb029588800/topics/start-opening-your-packs/28a99e77-226b-4edc-aecb-3785d39e083c/posts
ok than. but if people need help they can say somethings on here . but it have to be about the cards.