Well, it might be obvious to say free spells and fast mana, but theres not a huge amount of difference between a cEDH player dropping multiple rocks, and a casual player dropping a Sol Ring and a Jeskas Will with a Deflecting Swat in hand
Here are a few other ideas: Play Games With Apps Many companies use in-game advertising as a way to generate revenue
Ultra Pro Deck Box: MTG Final Fantasy - Jumbo Cactuar (PRO-100+) Ultra Pro Deck Box: MTG Final Fantasy - Jumbo Cactuar (PRO-100+) Ultra Pro 100+ Deck Boxes for Magic: The Gathering(R) --- FINAL FANTASY feature a vibrant, full-color artwork and includes a deck divider
(To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.) The ability that causes Agent Frank Horrigan to have indestructible starts to apply as soon as it's declared as an attacker
Cori-Steel Cutter from Tarkir: Dragonstorm and Ketramose, the New Dawn from Aetherdrift have both supplanted existing decks in Modern, letting them flourish in the face of Guide of Souls and its ilk
It's the way it has perfected the art of F2P mobile games