I tried using your deck for the first time and I watched your video. It works for me although on the second last turn, he summons Valkyrion, Rock Spirit and the Statue for the full field. Great job!
Nope, I used the 3 Unhappy Girls (which are on the field, 1 Girl to attack on its column = attacked them on the 3rd last turn) to attack each monster (Holy Guard skill).
zhizen
zhizen