Similarly to Seven Dwarves from Throne of Eldraine, Nazgl allows players to break a formats deckbuilding rules
You can mill your entire deck, put four Narcomoebas into play, use three of them to flash back Dread Return, and reanimate a finisher like Thassa's Oracle to win the game on the spot
If you just so happened to cast a Hydra, well two for the price of one
Artifact Qty: 1 Price: 0.39 Gerrard's Hourglass Pendant Flash If a player would begin an extra turn, that player skips that turn instead
All of them are now doubled, so this is half of Doubling Season in the Command Zone for one less mana
So, almost every card incentivizes you to switch back and forth between the two sides whether to adapt to the situation, or to repeatedly farm value from each side a la Huntmaster of the Fells