Wrapping up the tests of valor in NG2 on MN, just one more to go in ch11, it's been kind of disappointing, because only 3/8 were an actual challenge, those being the ones in ch3, 5 and 6.
Out of those, I still managed to get the ch5 one relatively fast (dogs & werewolves), but the one in ch6 with the marionettes and flying robots was absolute misery.

Reflecting on this, 3RE probably has the hardest content in the series, with some of its ToV's and and Ultimate Trials.