by Adonai_80
I've played twice, both with new players, both times were right around 3 hours.Reducing the life points may make it go faster but the majority of the time spent (I believe) will still be in the choosing of cards to play on your turn and in the rule book looking up traits and effects, and double-checking rules.. One you have the rules down, the gameplay is actually quite fast as long as you don't take a long time picking cards.
But overall, it probably will reduce the time - no worries on doing so from my view. I'd say maybe do half-health ? it could probably be over pretty quickly though if one mage went all offense right out the gate.