Greeting Immortals, the time has come! We will be patching later this evening with Murderhoof available afterward if you had pre-ordered him from the founders edition. Remember to have fun and don't let his rage get to you!
Murderhoof will have two skins available on launch which include the Zebrahoof and Dark Horse Murderhoof.
Check out his Spotlight!
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to see the complete update notes in the official forums. You can still get early access, just login to the game now and get the Founder's Edition in the game store!