Variations Rionya usually copies nonlegendary creatures, but it can also copy legendary ones like Raiyuu, Storm's Edgeyoull just sacrifice the original to the legend rule so the token can trigger extra combats
The Simic side is just two and prevents all of your spells from being countered this turn by spells...or abilities like the cycling trigger of Decree of Silence
Healing Salve was the worst on this list, as gaining or preventing three life is not as good as, say producing three mana, just outright making your creature +3/+3, killing a creature/dealing damage, or drawing three cards
Since Standard 2022 is only best-of-one, being able to get some value our of our otherwise useless sideboard is very powerful
Lands The first question everyone asks is -How many Lands should I play? There is no right answer, but in most cases players run from 34 to 40 lands with the middle number 37 to be the golden number