Tiyog, Master Necromancer

Tiyog, Master Necromancer gets +1/+1 for each
creature card in your graveyard.
If Tiyog, Master Necromancer's power is 6 or
more, creatures you control get +1/+1 for each
creature card in your graveyard.
{x}{b/g}{b/g}: Put the top X cards of your graveyard.