Was able to successfully complete two of the Elemental Challenges for the new event despite my stricter selection of Monster Girls but man these are brutal. The crippling debuff to anyone not of the element's one thing but the point lock was the biggest pain in the whole thing. I ended up forced to use the Salamander Girl for both teams just to generate enough points to place more Girls and babysitting her was rough even with a couple borrows.
Lucretia, Rami and the Dryad Girl ended up managing to hard carry the Wind Team (both versions of Fermi helped a lot with tackling solo enemies but she kept going down) but the Water run was only possible because of how much damage the rented DPS unit could dish out and by the end of it only her and Perili survived. Even then the Water one took multiple tries and configurations just to keep said unit alive. The Wind Team felt more earned, but the Water one was much harder to actually beat. Pretty glad to do both of them though. Hopefully I can beat the Earth one next. It's honestly a really fun idea for a challenge, despite (or because of) the limits it's placed on the teams I can build.
It was nice to use Erubetie and Lime together though.