I built Yidris when the Lord Windgrace C18 deck was spoiled. Lord Windgrace just wasn't the lands deck I thought it would be. Adding blue also added Trade Routes and Meloku the Clouded Mirror, great additions for a land theme.
Riku comes in literally two reflections. Spellslinger.dec with or without Storm, or a creature copy/clone/token deck. Both can be fairly strong, but I find that a token strategy is generally more consistent, and less dependant upon Riku: http://tappedout.net/mtg-decks/riku-mirror-master-2/
Yisan is a powerful, competitive toolbox commander, but he can be difficult to bring down in power level without compromising synergy.
Yidris has the benefit of versatility. Yidris can support a wide variety of deck strategies, he is generally a good commander. I have him as the commander of my lands deck: http://tappedout.net/mtg-decks/yidris-maelstrom-landscape/
I built Yidris when the Lord Windgrace C18 deck was spoiled. Lord Windgrace just wasn't the lands deck I thought it would be. Adding blue also added Trade Routes and Meloku the Clouded Mirror, great additions for a land theme.
Riku comes in literally two reflections. Spellslinger.dec with or without Storm, or a creature copy/clone/token deck. Both can be fairly strong, but I find that a token strategy is generally more consistent, and less dependant upon Riku: http://tappedout.net/mtg-decks/riku-mirror-master-2/
You don't appear to be playing any blue, you could look at changing things up with a The Locust God or Brago, King Eternal deck. Personally, my favourite blue commander is Braids, Conjurer Adept. She plays a "group hug" but not really strategy, where you gain significantly more benefit from her ability than your opponents do: http://tappedout.net/mtg-decks/braids-dreamer-of-reality/
I've also just built a Prime Speaker Vannifar deck that I really really enjoy; however, she is also building a reputation for power and combo etc. She will likely have Zur level notoriety soon: http://tappedout.net/mtg-decks/pod-speaker-vannifar-3/