7/7 Giant creature, for Giant Opportunity
In a removal-heavy environment, the enchantment typing on Funeral Room gives a teeny bit more staying power than creature-based alternatives like Blood Artist and Zulaport Cutthroat
I'm sure you can see why it's here
But the steeper mana commitment, plus the fact Phenax technically does nothing on its own, locks it more into the role of build-around/win condition
As for those dinos, they're the perfect MTG creature type for 'Timmys' - players who like to summon big creatures and wallop their opponent
Sephiroth, Fabled SOLDIER / Sephiroth, One-Winged Angel Sephiroth, Fabled SOLDIER provides a sacrifice outlet as well as a siphon trigger, which often requires two different cards like Zulaport Cutthroat and Viscera Seer