A better Enemy Phase for Siegbert

Hi! Yesterday I got a +spd -res Siegbert when pulling on the legendary banner. I really like his offensive playstyle, but even though I'd like to use him, I'd like to change his build a bit, since I prefer an enemy phase "bait and kill" playstyle(kind of began favoring it since I started using anti-meta units like Inigo).

I was thinking about Fury. Yes, I know, he comes with Death Blow and built-in Swift Sparrow, but 57 attack on initiation is still quite high, and 53 on EP is nothing to scoff at. He would also have 41 speed if attacked, and 45 if attacking, which would help doubling and avoiding doubles. I know Fury is a decent option for him, although he's usually built with Swift Sparrow, but that doesn't work on EP. He'd also have 34 defense. He already has 31, but making him a dual-phase unit is, as I said, more fitting for my playstyle.

The thing is, would you use Desperation with this build so he can take a hit, fall into Desperation range and use it on the next turn, or would you say Vantage might be better for a second bait in case it's needed? I'm considering Drag Back as well, to retreat after a duel and get repositioned out.

I know this is not the best way to use him since he's meant to be a player phase unit, but I think he has some potential as an enemy phase speedy baiter.

Thanks in advance!