While the obvious choice would be to use a legendary werewolf card, there are only two dedicated legendary werewolf creatures for you to pick from
I adore the craft that goes into updating staple, workhorse effects like Travelers Amulet into Ecologists Terrarium
More often than not, this will destroy the scariest creature on the board twice and grant you some tokens, which is still a decent card
But Emeria's Call is way too overpriced, and there are much better and cheaper options to keep your creatures safe
Even if Essence Channeler gets removed, you can just move the counters over to another creature so all the stat increases don't go to waste, turning a completely different creature into another threat your opponent will have to deal with
A deck can have any number of cards named Slime Against Humanity