Wo Dao+ / Giant Spoon+ Theory Build

I'm completely broke on feathers and resources, so I really can't build this, but I'd love to hear some thoughts on the build. :') It'd work for Red units, Green units, Dagger units; essentially anyone who has a weapon with built-in special boosting similar to Wrath.

Wo Dao+ / Giant Spoon+ / Lethal Carrot+
Ardent Sacrifice
Moonbow / Glimmer
Heavy Blade 3 / Flashing Blade 3
Desperation 3
Threaten Atk 3 / Threaten Spd 3
Brash Assault 3

Essentially, the concept is to use the Support skill to get into the percentage where both Brash Assault and Desperation are active. Then, you can just spam damage-boosted specials, since if you have a higher attack or a higher speed than the opponent, you can get instant special charge. The same build might also work if you have Heavy Blade 3 as a sacred seal, with either Life and Death, Swift Sparrow, or Death Blow in the A-Slot to boost the attack to the point where it triggers often. I think Soleil would be a good option for the Wo Dao version of the build. I also have a defensive concept build:

Wo Dao+ / Giant Spoon+
Reposition
Noontime
Steady Breath
Quick Riposte 3
Threaten Atk 3
Flexible seal

This set would essentially let the user spam boosted Noontime constantly thanks to Steady Breath. Not particularly amazing. Also, I know that both of these builds have probably been done plenty of times; I just enjoy thinking about the options, especially now that these new and useful inheritable weapons will be released.