Volcanic Queen?

Question

Text: You can Special Summon this card to your opponent's side of the field by Tributing 1 monster they control. You cannot Normal Summon or Set during the turn this card is Special Summoned. Once per turn, you can send 1 card you control to the Graveyard to inflict 1000 damage to your opponent. If the controller does not Tribute a monster other than "Volcanic Queen" during the End Phase, they take 1000 damage.

Text in Question: "Once per turn, you can send 1 card you control to the Graveyard to inflict 1000 damage to your opponent."

Question: Does this effect apply to the owner or the controller?

Answer 1

i was wrong lol

Answer 2

Volcanic queen as I'm sure you understand is very similar to Lava Golem. You special summon Volcanic queen to your opponents field, and unless they can tribute one of their own monsters they take 1000. However YOUR OPPONENT (the controller of V. Queen) may opt to tribute one of their monsters once per turn to deal you 1000 damage. So the Queen is a double edged sword, who can essentially hurt both players. Hope this helps!