Celtic Heroes

How do sigils work? I have a mage and wondering so sigils work if i keep constantly casting offensive skills (fire bolt,ice shards,incinerate,firestorm) or do sigils not work because im casting offensive skills, does that mean after i run out of mana i have to wait a few secs for sigils to fill up my bar?

I tought they only work when you are out of combat

Sigils do not work when casting offensive spells.
You need to stop attacking for a bit and they will start to work. For this to be useful in combat you would need a lot of them. However sigils help a lot keeping your energy up between fights.

In combat u will need lux items or use your energy spells.