i have done 75 multi-battles to get Alice's mastery's and still dont have enogh to compleat them,ive been getting like 4 mastery's at a timeand she is the only one on the team that needs them,so plarium you need to buck your ideas up as this drop rate is absoluty ridiculous
If you're running minotaur stage 15 it takes an average of ~150 runs per champ to get all thier scrolls.
If you're level 60+, and have 130 base energy, it's cheaper to use gems to buy energy potions and do mino runs than to just spend the 800 gems to get full scrolls instantly. Not sure how the numbers work out at lower levels, it's been a long time for me. You also get xp and silver by doing the runs.
Four food + one solo mino farmer takes the four from 5* level-1 to 6* level 58. It's an easy way to do both at once. Time-consuming, sure, but easy.
