In this year's annual State of Design blog post, available in full on the official Magic website, head designer Mark Rosewater hinted at the three keys to its success
Butch DeLoria, Tunnel SnakeButch DeLoria, Tunnel Snake could be a powerhouse in an Anowon, the Ruin ThiefAnowon, the Ruin Thief deck, but with his ability to turn anything into a Rogue, he might also find a home in Party decks like Nalia deArniseNalia deArnise
It was named after player Paul Sligh, who was the first person to pilot it
13 Forests
8 Hogaak, Arisen Necropolis Though primarily known for its dominant run and subsequent banning in Modern, Hogaak, Arisen Necropolis is an impressive creature that can serve as a powerful Golgari (green/black) graveyard commander
Checklist Primary win method: Combat, combo, burn, drain, lock, inevitability