When you have a card whose presence abnormally affects your chances to win the game, it should influence your mulligan decisions
Salvager is mostly poo as it is sorcery speed sacrifice but it can at least do artifacts as well which has its place, most notably with Pitiless Plunderer
While only affecting a single creature type restricts Cavern, typal decks can leverage this to ensure their threats get through countermagic, be they efficient merfolk, monstrous dinosaurs, or sneaky goblins
The blue in the deck is a very light touch, dipping into the Blue-Black zombies from Amonkhet (Gleaming Overseer, Spark Reaper) and Innistrad (Havengul Lich, Diregraf Captain, Champion of the Perished), as well as a handful of counterspells (Sinister Sabotage, Undermine) and card draw (Distant Melody, Deep Analysis)
And so the great locust god fulfilled the great promise, and thus the Hekma was torn asunder, its protections cast aside before the return of the God-Pharaoh." EPISODE 5 - FAVOR Bontu reveals her true ambitions, even as the city of Naktamun crumbles
1 Bonus booster pack of 12 randomized cards