My new team to farm Core 6*:

- Flowering Peach Halloween (support)
- Spring Star School (support)
- Adlay (support)
- Zinnia (support)
- Corbett (attacker)
With that, Flowering peach gives her nice x1.8 skill act. Core boss don't hit hard enough to break through Adlay+Spring Star wall so, I don't need any debuff.
It's not as effective as Tritoma to beat the regular enemies but they don't have 3 turns restrictions and go through the guts wall faster. Ancient Knights are definitively better in any cases.

Adlay is on another level of brokeness indeed. For me she sit at the top of the top tier since she was released. She even deserve her own tier.