Deathstalker Rexxar× 1 is in the deck because sometimes you can create really strong Zombeasts which can be put in your deck with Dire Frenzy and can be recruited by Kathrena or one of the Whelps from Vectus and if they cost (5) or less mana they can even be summoned by Guardian Animals.
Prince Keleseth× 1 is the last card in this deck. I had troubles finishing the deck and noticed I had no (2) mana cards so it was only logical to put him in the deck giving the beasts which can be pulled from the deck more stats.
I feel like there are too many non-beasts for call. It is very lackluster if you’re not getting all 3 options. And in a deck like this, do you even want all 3 options? Drawing beasts early really hurts guardian animals.