The Pendulum Summoning is weird and confusing as heck.
Also changes to the rules like the player going first cannot draw on their first turn, both players can have field cards at the same time and there are 2 new zones for the Pendulum Monsters however that works.
Ugh, I got a headache simply from reading the first lines. Although the game mechanic changes (especially the one about not drawing on the first turn) is going to be interesting. Anyway, I almost had a heart attack when I saw some of those new cards. I thought the card layout had changed again but it seems like that's only true for the Pendulum cards.