Doom can be an annoying spell as it gives you three turns to win the battle before you die automatically (even less time if you have the misfortune of having something like Haste cast on you at the same time). If you want some tips on how to stay alive with Doom, try the following:
1.Cast Slow on the character afflicted with Doom to slow the Doom Count down. 2. Cast Stop on the character afflicted with Doom to temporarily stop the Doom Count. 3. Use Induration (a Mystic Art) to turn the character afflicted with Doom to stone and "heal" Doom, though the character will be encased in stone until you heal him or her.