Hades takes centre stage in the key art, with reflections of Captain Hook, Ursulas Shell Necklace, the Poisoned Apple, and Jafars staff hinting at a villains theme
Specifically, Sword of Fire and Ice gets the nod in Legacy because protection from blue allows creatures to attack through True-Name Nemesis, red covers a section of cheap removal, and the trigger says draw a card. In modern I suspect many of the other swords will get their chance to shine: the protections are more relevant and cover different Modern archetypes
There are similar issues with Mono-White Aggro
Suddenly each card that says Sacrifice this: Draw a card gives you two cards, while Clue and Food tokens give you twice the benefits when sacrificed
The app's premise is to collect Mortys, each Morty has its own variation, and your job is to catch them all and train them up, so you can build out a powerful team to battle against other Morty trainers
Trash all of its digivolution cards