Alternate Ways for Masteries
For any respectable Whale these waters do not require your milk.
Being a free to play player if find it a little ridiculous to farm over 5000 units through arenas. I was wonder how whether they should add alternate ways to gain units or another way to get the cores like Rocket's Scrapyard. Another issue is ISO I find that getting ISO is ridiculously hard to raise all of 3* champions to max. Gold is another issue because arena is mind-numbingly boring to farm units and gold.
In my personal opinion there should be halls of fortune once or twice a week with a chance to obtain units. Make a battle chips shop so rather than praying to RNG to obtain stuff make it like the alliance shops with the punishers and have gold, units, and energy refills in there.