A Dire Plea from an Old Friend

Fear me, old friend. Fear what the eldritch being can really do.
Play my game, and just maybe I shall spare you a bit of mercy if you prove to triumph.

Forsooth, dread me, olde comrade. Dread what the eldritch being may truly perform.
Partake in mine game, and perchance I shall grant thee a measure of mercy if thou dost prevail.