In UO standing in fire walls was a method people used to skill up. UO was skill based, not level based. And you gained skill points by doing those actions. A go

In UO standing in fire walls was a method people used to skill up. UO was skill based, not level based. And you gained skill points by doing those actions. A good way to have a group build up spell resistance was to cast fire field, everyone stands in the fire, and have someone cast heals. Casting the field and the heals also improved casting abilities