An Advanced Fighter type Monster Room introduced in Boss Monster: The Next Level
Due to the wording of the card's ability, it seems that the player is required to destroy an Advanced Room, as the word "may" is not in the text.
However, this card is good for destroying an opponent's Advanced Room, thus greatly hindering them. Alternatively, it could also be used to destroy an Advanced Room in the player's own dungeon, possibly to activate a card effect of another Room card.
This card features a new type of monster, a Megaworm.
This monster may be a reference to the common giant worm of many fantasy settings, and in some science fantasy settings, as well. Two goo examples of each are the giant worms in The Hobbit, and the giant worms seen in Dune.