That shell probably involves cards like Malakir Rebirth and Not Dead After All
However, I have gotten multiple very early KoGs with Yubel and am always looking for ways to up my game
Quests gradually gain "Quest counters" whenever you fulfill a certain condition
Its ability, Set Up, lets players draw until they have six cards in hand whenever Shaymin EX is played from the hand onto the Bench
You force them to spend multiple removal spells on the card before being able to damage you again, which results in huge resource losses for decks that heavily depend on them
You can give your Xyz deck a jolt of energy with the super-storm power of Ryzeals, or delve into a madcap Cyber World with Maliss (Pawn), (Queen) and monsters (code) - no matter what you choose, this set is definitely something to look into if you're wanting to win your next tournament