When this card destroys a monster by battle and sends it to the Graveyard: Gain Life Points equal to the original ATK of that destroyed monster in the Graveyard.
Rulings
Individual Card FAQs
The controller (not the owner) of "Guardian Angel Joan" increases his/her Life Points.
When "Guardian Angel Joan" is destroyed while battling a monster with equal ATK (such as another "Guardian Angel Joan"), her effect is NOT activated because "Guardian Angel Joan" has been removed from the field.
When "Guardian Angel Joan" attacks "Cyber Jar", "Guardian Angel Joan"'s effect is not activated because she is destroyed before "Cyber Jar" is sent to the Graveyard.
Netrep Rulings
In determining the increase in Life Points for the effect of "Guardian Angel Joan", the original ATK is the number printed on the card.
The original ATK of "Maju Garzett", "Great Maju Garzett" and "Gren Maju Da Eiza", when destroyed by "Guardian Angel Joan" is treated as zero.
LIGHT|
Level 7|[ Fairy / Effect ]
ATK 2800|
DEF 2000