I also play Library of Leng in my Nekusar, the Mindrazer deck, but I find it's really well suited for a deck that has a lot of discard effects or wheels (discard and draw) that target myself as well as the table
I understand that you need to run four colors to pull this off, and Im not sure if Standard has either the manabase or the cantrips to try to move in on that approach, but Modern should easily have all the necessary tools available (not really considering it for Legacy as combo decks have a much higher bar to climb there, what with Tendrils of Agony and Show and Tell alive and kicking)
The most useful element of Battle Academy is its game board, which makes it easier for players to keep track of some of the games mechanics, providing areas for their active Pokemon, benched Pokemon, Prize Cards, and more
I get the frustration players have if they have to spend extra money on external products to keep Magic cards from expensive collector boosters in good shape that come straight out of the package, but in the meantime, I hope this guide was helpful
There are other options that are fairly deck specific before you choose Wrap in Vigor
A $79.99 fee per card makes submissions on anything under a certain threshold hard to justify