op-8 booster box One Piece TCG: Adventure on Kami's Island (OP-15) 12-Box Case the Whitebeard Pirates appear as blue One Piece - Two Legends

These cards are phenomenally frustrating to deal with, and they often do not allow the opponent to have enough tools to combat the endboard

Whenever you control a spellcaster monster, you can special summon this guy from your hand

It has gold lettering and a holographic foil image like an Ultra Rare, but also has a holographic gold image border, lore text border, and card border

4 Denglong Sets up Nine Pillars and Replaces Itself Invasion: Vengeance Nov

This effect is most effective when summoning floodgate monsters, the most synergistic of which being "Amorphage Sloth" - who has the benefit of also being searchable by "Redox" and due to being Level 6 can be Tribute Summoned if the "Dragon Ruler" player has not used their Normal Summon