Fire and lava damage is extremely frustrating because you take a massive amount of damage from stepping in a fire or lava and can't do anything but sit there and watch your health drain. On top of that, lava is buggy and often sets you on fire even though you didn't even step in it. (This usually happens when you jump over a lava pool or fire and barely make the jump - Minecraft thinks you touched the lava for a tick and sets you on fire for no reason.) Dying to fire and lava is extremely frustrating and often feels like a cheap death because of how much damage you take and the inability to recover from it unless there's water nearby. To make it less frustrating, I think every class should have a spell to put them self out when on fire. That way, you'll still get hurt from stepping in a fire or lava, but won't take a massive amount of damage over time despite having escaped the hazard. Warrior: War Scream should put out fire. I imagine the scream as a burst of air, so it could be like it's blowing out the fire. Assassin: T3 Spin attack should put out fire. It already removes debuffs, so why not fire too? Archer: T2 Escape should put out fire. The fast jump blows the fire out. Mage obviously already has heal.