Emerald Hunters

After lurking a lot around the net I've seen some drawings with Rainbow Dash and Sonic and I thought that they actually form a nice team.

Then I started thinking "ok who else from Sonic universe can interact with some ponies?"

And that's how everybody favorite knucklehead somehow find him self digging for precious gems for a certain pony.

Hey, don't be mad at Rarity, it's not her fault that Knuckles is soooo gullible.

Rarity belong to Hasbro
Knuckles the Echidna belong to SEGA