When its summoned, you can banish a card from your opponents hand, field, and graveyard
This sets up perfectly for the finishing combo of Card Destruction + Serial Spell, which will cause the opponent to draw 20 cards or more, ending the game in deckout
Forbidden Chalice
In Chapter 2, guardians were also provided with cards that help them discover clues, and seeing as there are also cards that test knowledge, it seems they were conscious of Joe Diamond's card pool
"D/D Berfomet", "D/D Swirl Slime", "D/D Necro Slime", "D/D/D Oracle King d'Arc", "D/D/D Wave Oblivion King Caesar Ragnarok", and "D/D/D Duo-Dawn King Kali Yuga" from the 2016 Mega-Tin Mega Packs
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