I hope these impressions will be useful, and enjoy your Edge of Eternities prerelease
A few anthems or mass pump/buff effects make an alpha attack an appealing way to win
If you cast Sevinne's Reclamation from your graveyard, any abilities that trigger as the permanent card returns to the battlefield will resolve before the copy of Sevinne's Reclamation resolves but after new targets for the copy have been chosen
Because shes Floodborn, she has Shift (in her case, Shift 2), allowing you to pay 2 ink to play her on top of another character named Mulan
Mega Absol or Mega Sableye ex can serve as a backup damage dealer while waiting for Hydreigon or if its knocked out
Second, it lets you look at the top card of your library and cast artifacts from the top a Mystic Forge-style effect, minus the ability to clear lands