Not sure if this is only phrased this way in the anime, but saying the dungeon "appeared" in Tempest makes it sound like they either don't know and/or don't care that Ramiris actually created it after Rimaru asked he to.
Do dungeons/labyrinths actually appear spontaneously in this world, or are they just being greedy and stupid because of Mariabell's control?
I swear my hunts for Terrakion and Virizion perfectly demonstrate the wildly different outcomes possible with RNG.
My Terrakion hunt took less than an hour including rerolling for a sparkling 3 donut. I got a sparkling 3 fighting donut in about 45 min plus 2 sparkling 3 psychic donuts for my future Lati twin hunts. After getting the sparkling 3 donut, it only took me 5 min or so of running back and forth to get shiny Terrakion.
My Virizion hunt took 25+ hours including rerolling for a sparkling 3 donut. 5+ hours to get a sparkling 3 all type donut plus a sparkling 3 steel donut for my future Cobalion hunt. After finally getting the sparkling 3 donut, it took me another 20+ hours of running back and forth to get shiny Virizion. The most annong part of this was consistently spawning in 3-5 other shinies during the process of rerolling Virizion.
Side note: I despise whoever decided that Virizion should have the most pain in the butt spot of the special scan legendaries in ZA.