If you can combine it with Ephemerate, as the four-colour decks often do, you can set up some devastating turns where you just wipe the opponents board
The key to these types of deck is Winter Orb backed by fast mana effects
Klang, Metallic Leader Uncommon Tangled 26 Heal What Has Been Hurt Common 129 Ive Got a Dream Uncommon Treasure Planet 81 Morph, Space Goo Rare 104 Billy Bones, Keeper of the Map Common 109 Jim Hawkins, Space Traveler Legendary 110 Jim Hawkins, Thrill Seeker Common 122 Scroop, Backstabber Uncommon 136 RLS Legacy, Solar Galleron Rare 138 Captain Amelia, First in Command Common 176 John Silver, Greedy Treasure Seeker Rare 196 Ba-Boom
That's why you use Drain Life, Corrupt, Soul Burn, and Zuran Orb to make sure you have plenty of cards to draw
I'd hazard a guess that the majority of players who have been around for a couple years now have most of these cards already