More 5th Gen Pokemon!

Unithorn, the Unicorn
Grass/Normal
Ability: Leaf Guard or Speed Boost

The once-thought mythical unicorn pokemon of Ohten, Unithorn is said to be faster than any Rapidash. However, because of its type disadvantage, Rapidash is often considered superior nonetheless. But Unithorn is also treasured by poke-poachers for its thorn-like horn, which is as dense as diamond, but shines like gold.

Unithorn's learnset contains such moves as Leaf Blade, Megahorn, and ExtremeSpeed.

Rownin, the Little Samurai
Fighting/Steel
Ability: Deep Cut (like Super Luck, it raises critical hit ratio for all moves)

At 3' 3", Rownin is not very intimidating to large opponents. But its Speed and Physical Atk are more than a match for most. All one can see of Rownin's face underneath its rather bulky helmet is Rownin's eyes, fiery and determined. Its sword appears to be made from a sharpened metal scrap.

When Rownin is holding Spirit Tag after reaching level 20 AND faints while you have an opening in your team, you get:
Spearit, the Fallen Warrior
Ghost/Fighting
Ability: Pressure

Once believed to actually be the ghost of a slain Rownin, Poke-Professors have found that it is really more like the part of Rownin's "fighting spirit" that was knocked out of it when Rownin was knocked out. Many trainers still have a hard time understanding this explanation.

Both Rownin and Spearit have access to moves such as Cross-Chop and Revenge. However, using his "sword", Rownin can use moves like Iron Tail and Metal Claw, much in the way Absur'd can. Spearit uses its ghostly "spear" (really just a metal rod sharpened at one end) to use moves like Horn Attack and Drill Peck. The use of items in place of body parts allows for these two to be very versatile in their fighting styles.