Mugh, Delirious Devourer

Companion -- Your starting deck contains
at least five of each: creatures, planeswalkers,
artifacts, enchantments, instants, and sorceries.
Mugh the Delirious gets +1/+1 for each card
type in your graveyard.
At the beginning of your upkeep, put the top
X cards of your library into your graveyard,
where X is Mugh's toughness.