Steelix is a dual type Steel and Ground Pokemon introduced in Generation II. It evolves from Onix when traded holding a Metal Coat. It can Mega Evolve into Mega Steelix using the Steelixite. Take a look below for 27 fun and interesting facts about Steelix.

1. Steelix is a long, serpentine Pokemon with a silvery gray body made up of rock like sections, which can possess chips and scrapes from fights and tunneling.

2. Three of those sections have long rock spikes coming out of them on either side.

3. It has a massive head mainly made up of its large, wide jaw with sets of large square teeth inside.

4. Along its bottom jaw are ridges: there are two pairs of ridges on a male Steelix, while there is only one pair on a female.

5. Several small, square lumps cover the underside of its lower jaw.

6. Its eye sockets are slightly deep set, and the eyes themselves are red.

7. Its head has two long ridges going from the eyes up to the top of its head.

8. The tip of its tail is conical with a blunt tip.

9. As Mega Steelix, its body becomes longer, almost doubles its mass, and gains more features.

10. Mega Steelix’s eyes turn blue and its lower jaw becomes more heavily armored with a round, curved shape. Additionally, a third pair of ridges appears on its bottom jaw, as well as two sharp, flat structures consisting of three conjoined projections on each side.

11. The gray, rock-like spikes and its tail point have transformed into prism-like crystalline spikes; the segments from which the spikes protrude are much larger as well. In-between the head and individual spiked segments are smaller units, now adorned by a black spot with a blue hexagon on each side.

12. Several metallic-looking scraps constantly rotate around its neck; these scraps react to Mega Steelix’s movements and change position when attacking.

13. The cells within its body, crystallized by the energy produced from Mega Evolution, are stronger than any mineral and able to withstand any temperature. It moves incredibly slowly, but its strengthened body is also impervious to damage, and it lashes out at foes without flinching.

14. Steelix burrows up to six-tenths of a mile underground and can be found in mountains or caves. It easily chews through boulders with its powerful jaws, and its eyes are capable of seeing in the dark. Exposure to underground heat and pressures alongside its iron-rich soil diet have made its body harder than diamonds.

15. Mega Steelix is tied with Mega Aggron for the highest Defense stat of all Steel-type Pokémon.

16. Mega Steelix also has the highest base Defense of all Ground-type Pokémon as well as the highest single base stat of all Mega Evolved Pokémon, tied with Mega Aggron.

17. Steelix is shown floating above the ground in all console games, rather than, like its pre-evolved form, resting on the ground.

18. All Steelix in the anime have used the move Iron Tail, excluding cameos.

19. Steelix is the only Pokémon in the Pokémon Ranger games that can hurt the Capture Styler simply by touching the line.

20. Mega Steelix is the tallest Steel- and Ground-type Pokémon.

21. Steelix can be seen as a parallel to Scizor. They both have pre-evolved forms from Generation I, and both evolve via trading with a Metal Coat in which both lose a typing to gain the Steel type.

22. Steelix, like Onix, is most likely based on a combination of a snake and earthworm. It may also be based on the wyrm, a type of dragon that has been presented as limbless and burrowing. It’s shiny coloration is likely based on the fact that gold is a very rare metal. Mega Steelix’s crystalline body may be a reference to coal turning into diamonds from compression.

23. Steelix is a combination of steel and onyx. It may also refer to helix (with regards to its serpentine body).

24. Brock’s Onix evolved into a Steelix sometime before Grating Spaces while it was being trained by Brock’s little brother, Forrest, in the Pewter Gym. In When Regions Collide!, it was revealed that it can Mega Evolve into Mega Steelix.

25. Steelix debuted as one of Jasmine’s Pokémon in Nerves of Steelix!. Jasmine first used Steelix to help Ash stop Team Rocket from stealing Pikachu. Then, during their Gym battle, Ash’s Cyndaquil managed to defeat it, winning Ash the Mineral Badge.

26. A Steelix appeared in Playing with Fire, under the ownership of Harrison. He used it against Ash during the Silver Conference. It defeated Noctowl with a combination of Dig and Iron Tail, before being defeated by Snorlax‘s Hyper Beam.

27. A Steelix appeared in The Legend of Thunder!, under the ownership of Hun. It was his main battling Pokémon, and was used to attack Raikou, Jimmy, Marina, and Vincent. It had an exceptionally violent and brutal personality.