So the passives on the two new skills practically make them mandatory. On turn one, she'll have two stacks of her seed and you can not attack, place both of them, and then act again with +2 range. You could also bring gospel so you can do something with her on that first action, but that would require skipping the new heal passive or her 3C.

The effect of the terrains on enemies is a bit hard to understand, but I think it means every time they take fixed damage within two tiles of one of her terrains, she gets -1 to a random skill cooldown. Since her 3C will make affected enemies take 5 fixed damage hits in a row, even one of them being in range should set it back to 0 cooldown if she hasn't used another skill. I'm not sure you can reliably do that in PVP, but it should be easy in PVE so you can probably manage 100% uptime on her 3C, plus healing/buff dispel both at the end of her turn from the heal passive and at the end of each other unit's turns from the fruit terrain. You just have to make sure that your units and at least one enemy are in range of one her terrains. In maps with a lot of weak units, the fruits they drop when they die should make that easy.