Hastur (Prince of Evil)
Split Evolution of Prince of Evil.
This form of Hastur trades in the Power UP for an AoE effect. As before, his gimmick still revolves around Eldritch cards, but now you get an extra boost based on how many you have Subbed on Hastur. And of course, you get yet a further boost for linking an Eldritch card. That said, this Hastur tends to fair a little better than his previous form in that you can actively sub Eldritch cards to boost his power instead of relying on ones to pop up in the played hand. As such, he can be quite strong.