The angel of the Lord is not a character.
REG
Only Characters in the Field of Battle can ignore other characters.
1. The ignoring card cannot be targeted by an ability that is on a card it is ignoring, or on a card played on that card, and when comparing the strength of the ignored character to the toughness of the ignoring character, the strength of the ignored character is treated as zero.
2. The ignored card cannot be targeted by an ability that is on a card that is ignoring it, or on a card played on that card, and when comparing the strength of the ignoring character to the toughness of the ignored character, the strength of the ignoring character is treated as zero.
3. Characters not in battle and targeted as ignored cannot enter battle.
4. Characters already in battle and ignored are treated as though they were not in battle for purposes of determining battle outcome, regardless of whether all opposing characters are ignoring the characters.