Reduce Dmg from Flies is still great since the dmg of them is fixed by the map, have to look at that more correctly to confirm it.

Healing on pest node is worse since most of them are placed in such a way that you won't really get something out of it. Edelweiss was awesome in the beginning, since everyone was scraping some Golds here and there and 12-5 was just a tunneling through pest nodes. Slice Gacha made her alomst obsolete though.

In all honesty, after getting 20 Event Girls, even exluding the original 3, you have pretty much won the game. Because at that point you can still make out enough by equipment and solar Blasting. Gacha Golds and Rainbows are overcompensating but nice to have if you plan on building a single squad for an RB and see how much you can do with 1 Point.