Do it right
In addition to the Scene Box, the Spider-Man set will arrive with special Play Boosters (14 Cards) and Collector Boosters (15 Cards), Bundles, Prerelease Packs, and new Welcome Decks
With a deck full of Demons, this ability will make it so you can dwindle your opponents and show them who the true Prince of Chaos is
The first serves as a way to encheapen your equipment and Auras, and can act as a stand-by Commander with her natural skills already in place
Obvious contenders are Snapcaster Mage and the like - creatures that accrue their value when entering the battlefield or in response to an opponent's attempt at a maneuver, and can then be used to counter a new threat later
By the same token, landfall is heavily associated with elementals, making cards like Roil Elemental and Omnath, Locus of Rage common mainstays in landfall decks