Discarding cheap counterspells like Flusterstorm or Spell Pierce or at least forcing the opponent to use them, so our turn two Reunion could resolve is a powerful move as well
You are buying from individual Japanese sellers, and the proxy forwards whatever arrives
you can create duplicates of cards easily in the app, whereas in real life you'd have to try your luck with countless boosters or buy single cards separately
Additional land plays come in many forms, from needing to deal combat damage with Sword of Forge and Frontier, to the simple green enchantment Exploration, and the mana fixing Dryad of the Ilysian Grove
Choose a creature at random that survives, and you get to attack with it is a wild effect that will lead to some amazing and memorable plays
The thing is, all the new top-tier Modern decks also do that