Father Dagon, depths' God

Islandwalk, Menace, Flash
When Dagon enters the battlefield under your control, destroy attacking creatures you don't
control.
Deep-Ones you control get +1/+1
—
Then I saw it. Vast, and loathsome, it darted like a stupendous nightmares' monster to the monolith, about
which it flung its gigantic scaly arms and gave vent ominousus sounds. I think I went mad then.
Dagon—H. P. Lovecraft