I don't know where to put this, so I'll just post this here. Some of the cards in Lv 50:
Gate Guardian
Jirai Gumo 3x
Cannon Soldier 2x
Kaiser Seahorse 3x
Gate Blocker
Fairy Meteor Crush
De-Spell
Widespread Ruin 2x
There are six more cards I couldn't find out. I was fighting them using Kaibaman deck, couldn't stall too long before my card runs out.
Ryuki
Nubashet
GameA1