First, it would be good to interpret the concept of "antimagic":
1. A nature spell?
2. An ability of certain creatures (e.g., Black Dragon or Berserk)?
3. A skill in "combat"?
Depending on this, you need to "adapt." Complete antimagic simplifies the game as much as it complicates it. Antimagic as a spell is the best option.
You can't heal, Zone of Bliss disappears for the duration of the battle