Midnight Clock [Aetherdrift Commander]

Set:	Aetherdrift Commander
Type:	Artifact
Rarity:	Rare
Cost:	{2}{U}

{T}: Add {U}.
{2}{U}: Put an hour counter on Midnight Clock.
At the beginning of each upkeep, put an hour counter on Midnight Clock.
When the twelfth hour counter is put on Midnight Clock, shuffle your hand and graveyard into your library, then draw seven cards. Exile Midnight Clock.