The more often you can represent having a card like Counterspell, Teferis Protection or Settle the Wreckage without slowing down your gameplan, the harder it is for opponents to tell when youre bluffing
Reap the benefits of playing and destroying lands, then build them back to your specifications - that way, you'll always hold the high ground
Too Few Lands Fix: Many new players run 32-34 lands
One of the big reasons why Sultai Mutate scored so low in so many categories is that the deck is built around a brand new mechanic that doesn't have any support from the past 25 years of Magic , which limits the number of good on-theme reprints and even keeps many of the most powerful mutate cards out of the deck since Wizards presumably wanted to save them for Ikoria proper
Few people played the game, the sets were sold in tiny quantities overall, and information about the game, card prices and rarities was scarce