I'm not exactly sure what the problem is here, but I feel this list is somehow..off?
E.g. I don't really think the white splash is justified just for Aura Shards & Ghave, although they're strong cards (especially the shards).
Also unsure about the Utopia Mycons and maybe the lack of sacrifice effects?
The list is solid but it does need a bit of tweaking. It feels "off" because it has too much token payoff but not enough token producers. So if you open with a hand that consists of something like 3 lands, Blood Artist, Zulaport Cutthroat, Ashnod's Altar and some other payoff card (pick literally anything) then it doesn't actually do anything. What you need to do is cut back on payoff cards/effects and add more token producers because the former doesn't do anything without the latter.
I like the White splash if you add 4x Exotic Orchard which is a card that I run as a 4-of in every 3+ color multiplayer deck. I agree that it's odd to splash for 2 cards but Aura Shards is busted so I like it. Ghave is solid since he goes infinite with Altar + Parallel Lives which is always handy in grindy games