change the battle position of your monster, and if you do, destroy that opponent's Spell/Trap
It makes people more vulnerable to scams on the secondary market, does next to nothing to deter resale, and ignores the fact that people may want sealed items for reasons other than immediate resale
In the anime, it was a fusion/S/X/P monster that I didn't understand, but the OCG made it a fusion P
During the opponent's turn, the player can Tribute it from their Hand or Face-Up Field and will prevent either play from being able to Banish cards that turn
Each Pokemon (or pocket monster) had their own powers and strengths, which each card's owner could use in a Top Trumps-style game
You can only activate 1 "Lavalval Eruption" per turn