Legends that are only so on the back end are not included - so Sidequest: Hunt the Mark /// Yiazmat, Ultimate Mark isn't included, nor is the melded form of Ragnarok, Divine Deliverance though it is referenced on its constituent cards
Equip it with Hammer of Nazahn to make it indestructible
Creature - Spirit Shadowgrange Archfiend When this creature enters, each opponent sacrifices a creature with the greatest power among creatures they control
#9 They could push it back
But due to other considerations (specifically, getting all the cards set up), Soul of New Phyrexia works out better in the long run
With all of these healing possibilities paired with Venusaur ex's naturally high HP, this becomes potentially the best card for absorbing incoming damage and surviving the round to dish it back out against the opponent