|Relic Castle B1F-B2F|
|Sandile||/||Lv. 18 ~ 21||40%|
|Yamask||Lv. 18 ~ 21||40%|
|Sandshrew||Lv. 19 ~ 20||20%|
Unless you want to fall down the sand pits, you're going to need to walk across them. This means no running! Avoid the first one and then cross the second one without running, fighting the Psychic with a Sigilyph L23. It's tough, but gives a lot of EXP when you beat it!
No Fossils for now...
In the previous games, you could talk to a person here and receive your choice of the Plume Fossil or Cover Fossil, which you could revive into a Archen or Tirtouga respectively. However, in Black 2 and White 2, you have no such free gift and have to wait until after you've beaten the game instead, where you can get them in Nacrene City. Oh well!
Now head back up the stairs and let yourself fall into the sand. You'll land directly on top of a hidden Heart Scale. Head on over east and fight the final Psychic, who uses a Solosis L23. Climb the stairs, jump down the ledge, and then make your way out of the Relic Castle.Head down the stairs and fight another Psychic, this one using a Gothita L23. Right past her is TM39 (Rock Tomb), a 50 power Rock-type attack that also lowers the foe's Speed after you use it. It has mediocre accuracy, though, but since a lot of non-Rock-type Pokemon can learn it, it can help add some diversity to your attacks and 50 power isn't that bad at this point in the game.