The idea is brilliantly simple: if you're left-handed and hold a full hand of cards, the cards on top tend to cover the mana cost and power and toughness of the cards below them
Sometimes its best to leave a threat in play and by turning it into a flyer with deathtouch, and forcing it to attack your opponent each combat well that makes for quite a good aura
When Xyz Summoned, Disaster attaches up to 4 Level 7 Dragon Ruler monsters from your GY or banishment, then it banishes monsters your opponent controls and in their GY with the same Attributes as monsters attached to it
Seven mana is a lot for a planeswalker that functionally acts as 1-for-1 removal, so have a plan to help this stick around
Ns Zekrom Mega Evolution Promo #031 on eBay Ns Reshiram Journey Together #167 on eBay Ns Plan Black Bolt #170 on eBay 151 Evolutions The Kanto starter finals are some of the prettiest cards 151 has to offer
Some have also been pretty okay in Commander, like Reforge the Soul