Board Thread:Plants vs. Zombies 2/@comment-18464102-20180905042224/@comment-24275721-20181004081327

I am not so sure about that. In one of the screenshots, it says "Upgrade to Mastery" meaning it is a seperate tier of upgrades that are unlocked maybe once a plant reaches max or maybe a set level (might be different for different plants)

Like how many of these F2P games have a level AND a rank. I think mastery is the rank. An example would be like in Angry Birds Epic where a bird can be upgraded both via mastery and level up which are both seperate things. But if I can make my plants even stronger, I won't complain.