Fine by me. Can they be something/steel types?
EDIT: Okay, here comes some stuff I've been thinking up. The three legendaries.
There are (in order) a Dragon, a Snake, and a Serpent-Dragon Hybrid. They each wear gothic kinda masks. (Like the one in this link - http://www.theater-masks.com/i/masks/comedy_theatre_mask.jpg) Their names are (in order from before, these may all be changed, I suck at making names) Dratred, Snense, and Elnist, derived from Hatred, Sense, and Silent (mix around the letters of Elnist). They all wear the masks which all subtract a normal ability from them. The Snake wears a mask without eyes, causing it to be blind. The Serpent wears a mask with a stitched mouth, making it a mute, and the Dragon's mind wears a mask of hatred-one that invades his thoughts, replacing calmness with anger. The snake is the only one in the situation who remains calm, where the other two wreck havoc becuse of intense emotions. To the knowledge of the two Dragons, the masks cannot be removed, but the Snake knows the masks CAN be removed only if they are to join in unity. Then the masks will summon forth the senses they lost. (ex. the masks that CAN see will give eyes to the one that can't) Once all the masks are normal and complete they will simply fall off, allowing the Pokemon to live free without the limitations of the masks. I wanted to make the legendaries I made steel types, but these guys are way cooler. Their types are: Dratred-Dark/Flying, Elnist-Dark/Water, and Snense, Psychic/Posion. The type advantage over the two to one makes it more of a challenge for Snense is the last one you locate (he's almost like the Rayquaza of Kyorge and Groudon) Also, it's more realistic that the good in the fight with evil will be overpowered and at a disadvantage, but still manage to win (Snense has better stats due to his hightened senses.)
I hope you like those guys!
[ChanseyMaster]