I think she does enough to get into the lower bomb range, especially because even if you dont have a deck with a critical mass of ETB triggers, the addition of shutting down opposing triggers makes it more likely she has a real effect in addition to the statline Her static ability alone does a pretty good job of protecting her, as taking down a walker with a single creature attacking at a time is quite the challenge, but her other abilities are also really good and make it challenging to ever take her down
An example is Summon: Shiva, which plays like a normal Saga, starting with an immediate effect and getting a lore counter each turn, before getting sacrificed after the last one is placed
The third option to distribute two +1/+1 counters among one or two target creatures has no synergy with our Treefolk Tribal deck, but it is just a plus
As I mentioned before, the most powerful way to build Commander decks with MDFCs is to cut five or six lands (usually basic lands or other utility lands that tap for one color of mana) along with two or three spells and replace them with MDFCs so that you end up with something like 31 or 32 "real" lands but 40 or 41 total lands