Not maintained anymore! Please take a look at https://mtgadraft.herokuapp.com/ which has the same capabilities (Distributes sealed boosters) but is (hopefully) up to date and has more features.
Generates custom random boosters from cards present in your MTGA collection. Useful to play variations of sealed via Direct Challenge. https://senryoku.github.io/MTGARandomBooster/
- Optimize (App size & perfomances)