Mirage Tower is a building that randomly appears in the desert area. Keep checking the place to find it.\r
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On the top, youll find two fossils, but will only be able to take one. The Claw Fossil contains an Anorith and the Root Fossil contains a Lileep.\r
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Once you get your fossil, return to Rustboro to get it revived by a Devon researcher to get your Fossil Pokemon.\r
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- Anorith: A physical sweeper, not right now, but once it evolves. It also learns some very good moves. Until Lv. 40, though, its still hard to train. Evolves to the all-mighty Armaldo at Lv. 40.\r
- Lileep: Lileep is more of a tank. Itll get good defenses, but is very hard to train. Evolves to Cradily at Lv. 40. Now Cradily, on the other hand, rocks.