If there is a face-up monster on the field whose current Level is different from its original Level: Change all monsters on the field to face-down Defense Position.
Set Information including prices and price hyperlinkes are taken from TCGplayer.
Cardmarket Yu-Gi-Oh! Sets
Set Information including prices and price hyperlinkes are taken from Cardmarket.
We use the Cardmarket "Trend Price", as such this doesn't differentiate between card editions. It simply gives a sale trending price across all card versions.