Captain Ahab:Vengeance

{x}{t}- Sacrifice X humans and create X Whaler's Harpoon artifact equipment tokens
•The first time you cast Captain Ahab:Vengeance declare a creature type. You get an emblem with, "Creatures of the Chosen type have -X/-X for each human creature token you control, if you control 10 or more human creature tokens, creatures of the Chosen type have last strike