MTG Salvation

I've been playing Riku as a spellslinging commander for a few years now, so I figured that it was time I posted my list somewhere.

I put my comments into list form to break them up a little bit. I haven't played with the deck recently, but URx spellslinger is a longtime favorite archetype of mine and I've had at least 4-5 Riku variants over the years. I'll offer a list if you want to see someone else's take on the deck. The last one that actually made it on here is from 2012 so it's not entirely representative of how I would build the deck today and it also intentionally eschews combos and extra turns. if you're still interested after all of those disclaimers, it's here.

• I'm guessing that skipping Reset is a budget call? You have the other elements to turn Firemind's Foresight into a one card combo. I'm curious how it's working out as a value card.
• I think you have enough basics (combined with the ramp spells) for Early Harvest here. That would help with the games where you don't get an infinite mana combo and have to burn people out the old fashioned way.
• You could consider Reality Shift as removal, as it doubles as a win con with any of your infinite spell copying combos.
• I've always really liked mana doublers and cost reduction for spellslinger lists, especially the more combo-y ones. Symmetrical ones have some potential to backfire, but you can treat most of them as rituals and they really kick things into overdrive on your kill turn. They also let you take advantage of Frantic Search, which is an excellent card regardless.
• Holistic Wisdom is a little bit of a pet card, but is excellent recursion nonetheless. Among other things, it gives you something to do with late game ramp spells. If you have a couple uses for late game ramp, you can overload on it for a more explosive gameplan.
• I would consider cutting some of the spell-like creatures, given that you're supporting noncreature spells much more heavily. Something like Dualcaster Mage is generally worse than Reverberate if you can't take advantage of the body.
• Going against the above, Riptide Laboratory could put in some good work here. It helps keep your general cheaper and lets you reuse the powerful ETB wizards you're already running.
• Manamorphose is probably more cute than effective, but it's a fun card when you can stick Riku and not useless at other times.

I recently added Lotus Cobra in place of Wood Elves for some more explosive mana and cut Ponder for Ancient Grudge to help deal with the more oppressive artifacts in my meta.