{Herald of Leshrac} + {Mana Seism} {Aggressive Mining} or {Greater Gargadon}
Take all the lands
Do whatever with them
Win!
Hmmm... Could have the beginnings of a nasty EDH deck
I have no idea
My friend showed me herald and I found cards he could use with it.
Also once you have enough lands where the next upkeep you couldn't pay cause there aren't enough lands to steal, you can just drop {eon hub} and then you'll keep the lands until herald dies.