Wilber Whateley

Sacrifice an artifact: Create a 1/1 cow creature token.
{t}, Sacrifice Wilbur Whatley, and five other creatures: Create a 10/10 legendary Horror creature token with trample.
The Old Ones were, the Old Ones are, and the Old Ones shall be. Not in the spaces we know, but between them. They walk serene and primal, undimensioned and to us unseen.