Congrats, is Garden Phlox a good unit (attacker/soft-support) ? Might consider about summoning for her but I don't want to push my luck too hard. And I need to build Corbett a team because she's current a homeless girl.
From my tests, the performance of Nidhogg is nearly the same as Corbett, both did 2.5B-2.6B vs 200 Hard Castle but Nidhogg is easier to use and has 5-turn, but she rarely uses more than 1 because she hits really hard and demolishes everything.