* Herald of Perfection has a special summoning condition: You can only Special Summon it from your hand by discarding a Spell card. This is the only way to summon it, as it has no other summoning methods listed on its card text.
* Special Summoning generally refers to bringing a monster from the hand, field, or graveyard directly onto the field. This is distinct from Normal Summoning, which is summoning from the hand, and Tribute Summoning, which is summoning from the hand by sacrificing monsters.
Therefore, once Herald of Perfection is properly summoned (by discarding a Spell card), it cannot be special summoned again using any other method.
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