for this you need {Sorin Markov} and at least 1 {Sorin's Vengeance} it's pretty easy, get out 7 land, and maybe a few creatures to block, then play Sorin, wait a turn use his second ability, then tap 7 land for the mana and play Vengence, insta kill
That's a long time. Dark ritual to speed it up?
You could do this on turn 5 on 3 mana.
first few turns, get some weenies. At least two.
Turn 3 {Chandra, the Firebrand}, +1 her.
Turn 4, -2 Chandra and {Krenko's Command}.
Turn 5, {Battle Hymn}, -2 Chandra and {Sorin's Vengeance}.
Chandra costs 4?
{Rampant growth} turn 2? ;D
Splash all the colors!
Derp
Just stick {Dual Casting} on something. :P