Many cards have rules text on them that allows them to use an ability, with a special effect
R Rare Exosister Asophiel X LIGHT Rank 4 [ WarriorXyzEffect ] ATK 2100 DEF 1800 2 Level 4 monsters Cannot be destroyed by the activated effects of monsters Special Summoned from the GY
So much so that our deck runs a bunch of other Deserts (Scavenger Grounds, Sunscorched Desert, Desert of the Fervent, Endless Sands) to provide additional fuel for Ramunap Ruins
You don't get to explore a dungeon, you just fight the duelist, plain and simple
Though they are shown to be immune to "Mirror Force", and that Yugi claimed "Ground Erosion" was able to both reduce the ATK of and negate the effects of "Obelisk" because it affected the Monster Zone that "Obelisk" was Summoned to, rather than "Obelisk" itself, the Egyptian Gods in the anime are vulnerable to certain cards such as "Ragnarok" which destroyed "Ra", "Magnet Force" which redirected "Slifer's" effect, and "Pyramid of Light" which banished them