What Special for Effie?

My Effie is +Atk -Res.

Brave Lance+
Swap
Bonfire / Glimmer / Ignis / Luna / Moonbow
Death Blow 3
Wary Fighter 3
Threaten Def 3
Armored Boots

Which of the five specials should I chose? This build for Effie on Gamepress assumes she's using Bold Fighter, which I'm not. I definitely don't want Aether for that very reason. I'm leaning towards a classic Bonfire, but figured I'd ask for some advice. Also note that she's not on an armor team; she's on a mixed team.