I wonder how many potential or accused magic users are out there, deemed to be warlocks. Imagine if the council offers sometching like a pardon if they agree to aid the wardens in the conflict.
If things got desperate enough, I could imagine the Council authorizing that. Dropping the Doom of Damocles, or diluting it, and giving the survivors 'one more chance' without it.
I see just one big practical problem, though. While there might be 'pardonable' offenders out there, people who broke a Law and haven't fallen all the way into warlockhood, some of them will have, and a 'suicide squad' wouldn't want the latter, they'd be a bigger threat to the team than to the enemy, at best.
So the Council would have to made a determination of the salvageability of the candidates, and then what happens to the ones who flunk? So I can't picture fugitives responding to a possible amnesty offer that might also include a death sentence.
But if you already had a group of captive Lawbreakers who looked like they might be worth a risk, in an extreme emergency...yeah, I could maybe see the SC authorizing it.