Sideboard options may be printed on the reverse of other cards so you can easily flip the cards to change up the decks power level/ art spice level to suit your playgroup
Whats actually good in Commander is very relative to what cards you have access to and what your playgroup is like, but Ive never failed to have fun and do silly things when playing my shrine deck at my local game stores
this is a neat, cleverly thematic way of representing Elsas freezing abilities
Theres likely plenty of times you can cast Ghalta, Primal Hunger for only 2 mana in a creature-heavy deck, leaving you extra mana to try to protect it with cards like Heroic Intervention or Mithril Coat
Plus, red decks have plenty of ways to give it haste, so you can escape it, drain 3, attack for 6, and drain 3 more to deal 12 damage total
If Clever Impersonator enters the battlefield as a copy of a planeswalker, it will enter the battlefield with a number of loyalty counters on it equal to the loyalty printed in the lower right corner of the planeswalker card