Rulings: Kataria, Queen of Evil Vines
- The effect of destroying all Spell and Trap Cards can be activated only when it is special summoned by its own effect summoning this card with card effects like Spear Cretin, Soul Charge, Call of the Haunted, or any other card effect that Special Summon another monster will not trigger the effect of this card.
- Self-Discarding is a cost and a part of effect.
- The effect activates only when it is Special Summoned from hand.
- When this card Discards itself from the hand to be Special Summoned from the hand, after going to the Graveyard, it activates its effect, considering the Special Summon location was from the hand.