You'll wind up flopping your entire deck onto the battlefield, so make sure you're running Concordant Crossroads so you can swing on the same turn, and make sure you have a way to get Nikya out of the way so you can actually cast Primal Surge in the first place
The center of the card is left blank, providing ample space for future text or artwork to be added
Squall Line severs this thread
Trapped within its wordy rules text is a simple idea: you enchant a dead creature from your graveyard, bringing it back to life (with slightly worse hand-eye coordination) to do your bidding
By paying close attention to the stack, perhaps by Swords to Plowshares-ing the creature you know your opponent planned to sacrifice, you can force them to sacrifice a more important permanent whenever they attack you
Dual-Purpose Lid The removable lid flips over to become a card stand, perfect for keeping your commander visible during play