Youll require two undying creatures in play, sacrificing the first to put a -1/-1 counter on the other, effectively resetting the +1/+1 counter from the undying mechanic
If you have a lot of bodies on the field, that shouldnt be a problem
That gives every color an answer, not just Blue's countermagic
By increasing morph costs by 2, it slows down the occasional Kadena, Slinking Sorcerer or Kaust, Eyes of the Glade deck
Outside of mass exile effects like Farewell, its tough to deal with a Hogaak deck because its designed to fight spot removal, counterspells, and wrath effects due to all the reanimator shenanigans going on
Jenova, Ancient Calamity Jenova is frankly a disappointment here in her card, which fits how she is in Final Fantasy 7 too, all hype but overshadowed by Sephiroth almost all the time