The only problem with trying to utilise Shift as an ability is that it relies on you taking up space in your deck for cheaper versions of the characters you want to shift out
(6/6/2025) If a card in your graveyard has in its mana cost, X is 0 for the purpose of determining its mana value
(If they're equipped to the same creature, the abilities of the equipped creature will also trigger three times.) An ability of the equipped creature that triggers when a card is put into a graveyard "from anywhere" triggers twice only if (a) a creature card was put into a graveyard from the battlefield and (b) The Masamune is still on the battlefield and attached to the creature with the relevant ability
We can immediately see from booster pack artwork that Vanellope von Schweetz is going to be a prominent character in Shimmering Skies, and boy are we expecting quite the sugar rush
As an example, Terra, Herald of Hope is a fantastic fit in Alesha, Who Smiles at Death decks
Suplex: Sorcery-speed is a downside, but being able to destroy Equipment and Vehicles is a big plus