Best Use for an Extra W!Lissa?

I'm... pretty irritated over pulling two Winter Lissas (along with a whole bunch of disappointing 5☆ non-event green units... and if they WERE good, they have unredeemable IVs). Yes, surely killing a limited unit you don't want out of spite isn't a nice (nor wise) decision... but in case I don't get a Winter Chrom to eat my spare, I need ideas of what to do with her.

I have (for 5☆ armor units) Hector, 2 bad Amelias, and the Black Knight, if Bold Fighter should be reccomended choice to pass on.

I would love as many ideas as what can be given EXCEPT for merging. I seriously don't know what to do with her... my +Spd/-HP one is better than this neutral one, anyway.