In Commander, that shuts off a shocking number of decks
Professor Hojo sets you up for powerful plays with equipment, but you can turn it into a reliable card draw engine with cards like Elvish Herder and Rhonas the Indomitable to draw a card for each turn
Well, a few of them, depending on your speed
Echo Tracer Suggested Cut : Skaab Ruinator This deck runs a few flip-to-bounce creatures, and I think thats warranted
It has a Shift cost of three and the ability Sleight of Hand, which states that when you play this character, you may put any number of cards from your hand on the bottom of your deck in any order, and you then draw that many cards plus one
Most other mass removal spells in Standard right now either cost more mana, have some sort of stipulation on them that gives your opponent something in exchange for blowing up the board or just isnt as efficient as Day of Judgement