"Mmm~ I think it's mostly just hard to get all of the cards I need in hand. Pendulum summoning is usually super doable, but it's hard to get what I need in tight squeezes, especially against other, more specialized pendulums." A hrrrm.

"I've considered more Yang Zing and less Stellarknights, since XYZ stuff isn't reeeeally suited for Pendulums."