The Worm Wizard

Conquer the World - At the beginning of your upkeep, if you control ten lands with different names you win the game.
Summon the Underworld Worm {t} - Create a Legendary Toe Creature token called Underworld Toe Baby with "this creature has power and toughness equal to the number of lands you control with different names".

"Nigel, maybe we shouldn't help this power hungry worm" - Marmalade