Talk:Plant upgrade system/@comment-26929229-20181110191309/@comment-5760976-20181110221651

It's another upgrade thing. From an EA Staff member themselves - "Take your plants to the next level… literally! With the introduction of Plant Mastery push the power of your plants even further by boosting stats (eg, ability to push through resistances, health boost or damage boost). By increasing a plant’s Mastery, that is a chance to boost your plant in order to lessen the effect resistances on plants as part of Buffz & Bruisez.

The higher the Mastery level (1-200) the higher the chance to overcome a resistance.

Mastery does not allow you to overcome total zombie immunities.

Keep in mind, Mastery is meant to be for the long term. You will not get to max out your plant Mastery over the course of weeks or months (Cheaters, I’m looking at you)."

I think it's for those Buff/Bruises things which eventually would make it so a Plant is good no matter what? Kind of takes away the point of that mechanic then.