ChloeCato, Trash Connoisseur

Vigilance, Lifelink.
Artifacts you control and in your graveyard
are Trash in addition to their other types.
Sacrifice a Trash: Create a Treasure
Token
{b/g}{t}: ChloeCat, Trash Connoisseur deals
X Damage to Any Target, where X is the
number of Trash in your graveyard