When you wear the two-handed sword included in dint999's BDOr Drakania Exclair Armor mod, the IDLE animation for Drakania is activated.
Since it is a mode that uses a simple DAR structure, you can edit it yourself and use it.
Made combat, non-combat idle, and post-move idle transitions all compatible if you are using a Smooth Moveset 2.1
required mod
BDOr Drakania Exclair Armor Skyrim SE AE
(All mods listed above must be installed to the latest version.)