House elves battle

[Bruce Alan Wilson]

No: HPFGUIDX 176327

Why didn't the House Elves use their magic in the battle?

Good question.

I think it is because bound elves are not allowed to use their 
magic against their masters, and in that most of the human 
combatants are present or former Hogwarts students (and faculty), 
they may have come under the ban.

Bruce Alan Wilson

"The bicycle is the most civilized conveyance known to man. Other 
forms of transport grow daily more nightmarish. Only the bicycle 
remains pure in heart."--Iris Murdoch