Goat format ruling
Lava Golem

Card effect (current official text)Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) to your opponent's field by Tributing 2 monsters they control. You cannot Normal Summon/Set the turn you Special Summon this card. Once per turn, during your Standby Phase: Take 1000 damage.
Rulings
- Lava Golem must be Special Summoned to your opponent’s side of the field using its effect text; you cannot Special Summon it or Tribute Summon it to your side of the field.
- However, if Special Summoned correctly and then sent to the GY, you can use Monster Reborn to Special Summon Lava Golem to your side of the field, but you (as the controller) will then take the 1000 damage during your Standby Phases.
- You cannot Summon or Set and then Special Summon Lava Golem.
- If you Special Summon Lava Golem onto your opponent’s side of the field they can activate Bottomless Trap Hole since you performed the Summon. You could not activate Bottomless Trap Hole even though the Lava Golem will be on their side of the field.
- Since Tributed monsters are not considered to be targeted, you can use Lava Golem and Tribute your opponent's Dragons even if he has Lord of D. on the field.
- You cannot Special Summon Lava Golem if the opponent has Jowgen the Spiritualist face-up on the field, nor can you Tribute their Jowgen the Spiritualist to Special Summon Lava Golem.
- Q: Does the effect of "Lava Golem" prevent a Normal Summon or Set in the same turn when you Special Summon it from the GY? A: Yes that effect applies even if Lava Golem is Special Summoned from the GY.
- 01/8/2004
- Q: Does the "Lava Golem" count as a Tribute Summon, thus making me able to flip "Blast Held by a Tribute" when my opponent attacks with it. A: "Lava Golem" is not a Tribute Summon, it is a Special Summon.
- Q: If "Lava Golem" was properly Summoned, can it be revived from the GY with "Monster Reborn?" A: Yes, only if it was properly summoned and it would come to your side of the field.
- Q: If I Special Summon to opponent’s side of field and my opponent uses "Remove Brainwashing," does this means that "Lava Golem" goes back to my side of field and I get the damage? A: Yes, that is what it means.
- Q: Once "Lava Golem" has been Special Summoned to the field with "Skill Drain" applying, can you Normal Summon or Set a monster that same turn? A: That effect is not negated by Skill Drain. It is a condition that is applied when you Special Summon the Lava Golem.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.