His deck is centered around Energy, perhaps the most powerful mechanic in the blisteringly powerful Kaladesh block, which was the victim of an unprecedented three separate bannings
Removal Creatures with deathtouch can be so annoying that many players prioritize them when using removal spells
Other abilities can't
The most recent 10s sold have sold extremely well, and an auction on 2/8 went over 1700
He was spoiled very early and got tons of media coverage
You can try to be an aggro-token deck, flooding the board with tokens, pumping them with Dramatic Finale, and trying to win with a quick go-wide beatdown, or you can play it more like a combo deck, where you focus on staying alive, sacrificing things for value, chipping in for damage, and eventually winning with Bastion of Remembrance and Plumb the Forbidden