It appears the Magic Steel skill (from Viking Wizardry) does not wear off. The charges to from 6/6 to 1/6 and back to 6/6. Not that I mind, but I doubt it's intentional
It's a regenerating ability: every time it hits 0, it charges you mana. It only ends if you hit 0 and you don't have the upkeep mana.
Ah ok, more clear. In that case the tooltip should be more explicit though. Because it mentions a limited time only.
