From the REG:
An ignore ability has four parts:
1. it grants the ignoring card immunity to all cards being ignored
2. it grants the ignored cards immunity to the ignoring card
3. characters not in battle and ignored cannot enter battle (i.e., you cannot choose to bring them into battle and they cannot be targeted by an ability that would bring them into battle)
4. characters already in battle and ignored are treated as though they were not in battle for purposes of determining battle outcome
However, I do remember desperately wanting to finding a cool use for Meal in Emmaus...
Activate Priestly Breastplate to negate ignores
Use your provisioned Miriam to CTB an Egyptian
Play Meal in Emaus to deactivate Breastplate
Sit back and realize you'll pull this combo off once every 67.3 games
