The (2) Ignition Effect activates & resolves on the field.
Tributing 1 Fairy-Type monster, except Athena, is a cost.
This second effect targets 1 Fairy-Type monster in your GY, it is negated by Necrovalley.
This effect can't activate while Zombie World treats monsters in the GYs as Zombie-Type.
(1) Each time a Fairy-Type monster is Summoned, inflict 600 damage to your opponent. (2) Once per turn, you can send 1 Fairy-Type monster you control, except Athena, to the GY and Special Summon 1 Fairy-Type monster from your GY, except Athena.
The (1) Trigger Effect is mandatory, it activates & resolves on the field.
Athena's first effect does not inflict damage when it is Summoned.
If 2(+) Fairy-Type monsters are Special Summoned by the same effect, Athena inflicts 600 damage to the opponent's Life Points.
If 2(+) effects in the Chain Special Summon a Fairy-Type monster, Athena's effect will inflict 600 damage for each effect.