mystic mine yugioh card MGED-EN047 Yu-Gi-Oh! Age Group Mystic MIME Card Alter :

You have Terrakion- EX to deal with Darkrai EX , which will still be widely played in both its own deck and Hydreigon/Darkrai

Buckle up and blast off to Myra the Magnificent's Intergalactic Astrotorium of Fun

He is also fairly broad unlike a lot of the more interesting cards for deck design and so while he is not a must have for a cube he is a good way to make things more complex and interesting

You might want to get an extra copy of a key card for your decks strategy or maybe youre missing the basic Pokemon in a powerful evolution line

Or in Karador, where you can repeatedly access the Awakening Hall side from your graveyard