I wonder why did they even do that. I don't recall them ever changing decks mid event... and this only counters one deck. Good thing I was running Divine Punishment along with Cloudian though, so I was able to negate that Earthquake. I might want to add a third copy though, or rush to get Trudge to Lv30 and switch over to Yubel.
Add counter trap rebound can also negate his tail swipe and magic jammer also divine punishment for earthquake. Only few loss due to not getting sanctuary at hand
Can confirm that adding Divine Punishment works. Just add 3 copies of it, it can counter both Tail Swipe and Earthquake, which he only runs 1 copy each.