Thunder Lance X Tempest Buster!/Rulings

Japanese FAQ Rulings (Source)

 * Q1610: Do you activate the ability of "Dragon Return System" if you are damaged by this card and your life becomes 0?
 * A: The ability of "Dragon Return System" is activated, putting "Dragon Return System" into the drop zone and putting the top card of the deck into the drop zone, but if that card is a spell, you will not gain 2 life.


 * Q1611: If you are damaged by this card and your life becomes 0, can you call "Fourth Omni Fire Lord, Burn Nova"?
 * A: No, you cannot. Because life cannot be changed by the effect of this card, you cannot pay the [Call Cost] of "Fourth Omni Fire Lord, Burn Nova".


 * Q1612: When my life is 5, this card is used. If I use "Chillax!" as a "Counter", will my life be 1?
 * A: No, it will be 0. When your life becomes 0 due to this card's damage, life cannot be changed due to the effect of this card, so the gaining of 1 life by "Chillax!" will not occur.


 * Q1613: When my life is 5, this card is used. If I use "Dragoguts!" as a "Counter", will my life become 2?
 * A: Yes, it will be 2. The effect of this card that prevents the changing of life is applied only when the life becomes 0 during the resolution of this card. Resolving the effect of "Dragoguts!" is done before the resolution of this card, so you can change the life.