Okay just to clarify I got this idea from a reddit post(and the picture is from that post):https://share.google/BgC0huvq1HCOKFzAT. This would be a really cool and new edition to all the weapons already(well ig there is only 4 but..).
The ability for the double sided glaive could be a poison stack type of deal.
Either that or like some sort of rage ability that ups your crit chance by 10% for 4 or 5 seconds.
SECONDARY WEAPON.
This is difficult considering that a glaive is a 2-handed weapon so. Why not make it something already on the glaive(kinda like the flail)
So what happens here. You'll be able to detach the 2 blades of the glaive and use them as throwing knives. And to make it kinda special since there is already a type of dagger. Every 30 seconds it will act as a slowing poison if it hits the enemy(and the "staff part" of it will clip on your back)
And once your done with the daggers you click trigger to recall them back on the "staff" of the glaive.
This might be to overpowered so you might have to tweak it.