This is a updated variation of an old multiplayer deck based around Glacial Chasm. The old deck used Howling Mine and Mana Flare for acceleration, this deck uses Rites of Flourishing in place of both cards. The old deck used Petrified Field, this modern take used Crucible of Worlds along with Crop Rotation.

The basic premise of this deck is deal as much damage to everyone as possible using spells that damage all players and all creatures. Rites of Flourishing is used to ramp up the mana base until you can get your Glacial Chasm out and Earthquake everyone for massive damage. Crucible of worlds makes it easy to sac and replay lands over and over again to play your spells.

Witch and Orb, Ground Seal, Gaea's Blessing, Hull Breach and Sulfuric Vortex make up the sideboard to deal with life-gain, artifacts/enchantments. Ground Seal is there solely to protect your graveyard's key cards if your opponent is running targeted graveyard hate, Witchbane Orb serves a similar purpose but can do even more. Gaea's Blessing is there to protect against milling of course. It's a pretty simple deck, and probably wouldn't work very well in single player, but it is meant for multiplayer madness after all.