This is a cool Idea I thought of one day that's called the Guardians. It's the old Kopaka with a thick blue stripe through his mask, Another is the old Pohatu with a black stripe through his mask, and Old Lewa with a red stripe through his mask. The Kopaka with the Blue stripe is the leader. All of the stripes represent the 3 other toa. The enimes have a mask like the Krahkan, and they're shorter then Makuta, and ripped up grey coat things, and They're weapons are a stick with Pohatu's claw on it.
-Ice
Edit: I'll try to post pictures of what they look like soon.
Pics
(sorry for the bad pics)

From your description, I managed to put together a pic of all the guardians. Tell me if anything is wrong.

From what Ice told me (whitch was more detailed, since he was there in person) those are pretty accurate... I made a Moc of the bad guy, but I can't find anything to use as a coat...
-Tnf

I don't think brickshelf is working maybe, 'cause i can't see them...