We had done several sets with artifact themes but none with enchantment themes
Lets break down each of its three abilities: Permanent cards in graveyards cant enter the battlefield: This ability hoses reanimator decks, which have been pretty popular in Modern since Modern Horizons 2 gave us Persist and Unmarked Grave
Instant Sideboard (CTRL to add secondary) Maybeboard Fable of the Mirror-Breaker (As this Saga enters and after your draw step, add a lore counter.) I Create a 2/2 red Goblin Shaman creature token with "Whenever this token attacks, create a Treasure token." II You may discard up to two cards
I recommend every blue deck with counter magic to play Chalice of the Void before Void Mirror as Chalice of the Void costing 0 mean we can safely resolve it if we have counterspell backup
Marath, Will of the Wild Marath is both the outlet and a combo piece, which should make things easy
Token doublers are some of MTGs most sought-after cards, thanks to the impact they can have in the Commander format