The boxes we recommend are all fine for double-sleeved decks
Blue and green have a lot of ways to manipulate the top of your deck with cards like Sylvan Library, Brainstorm, Augur of Autumn, and Ponder
This allows you to ramp early game and still deal some damage, then once you have a lot of lands you can play big splashy spells to help finish off your weakened opponents
Even without his trust brooms to hand, Mickey Mouse, Wayward Sorcerer is a decent card, offering two lore, three strength and four defence for the price of four ink - or the option to add him to your inkwell if needs be
in a casual game if I had an opponent who could somehow keep an un-bent Reidane, God of the Worthy standing up without any support and without using a stand I might actually consider letting them use both sides