Nearly every casual Commander deck has a few board wipes
Typal decks can leverage upgraded effects in almost every important category, just by making the necessary deckbuilding commitment: ramp, draw, recursion, tutoring, removal and defensive interaction, even better color fixing
After one discard the Pack Rat is a pair of 2/2s and you have invested two cards in that
Fury Pitch cards like Solitude and Force of Will are primarily balanced by being card disadvantage
Not terribly strong as you bat commander but excellent in your 99, you really only need to empty one opponent's hand (find the aggressive player) and you'll be ready to return the Temple of the Dead flip land to the card drawing, token generating, life draining bat, and rule the table
The big failing of this card is lack of trample