Sentinels of Earth Prime - Eldritch: Last Stand Unlock
This variant is crazy. That is putting it very mildly. To explain, you sacrifice a card from your hand to give a surge of tokens to a spell, possibly funding even a powerful master spell to go off. With some relics, cantrips, or a specific spell, you can start a ridiculous loop here that can spiral out of control if a game goes too long.
To unlock this monster of a card, you need to be against Malador, reduce his HP to 0 or lower while he is on his normal side, all 4 master spells must be in Eldritch's play area with enough tokens to power them. Finally, just lose.
If you pay attention to the spells Malador has in play, you may be able to trap him on his normal side to make this very easy provided you have the DPS. In the event things just go horribly, remember that his flipped mask card can destroy problem spells and generate tokens to flip him, so make sure to abuse it. Eldritch can provide out of turn power plays to speed this along if needed.
Overall, a somewhat easy unlock that is just on the time consuming side. Also, remember that I triggered the first part of the Lantern Jack unlock here, so we will need to finish that tomorrow.