The only changes I'd consider making are more untapped lands, and Insidious RootsInsidious Roots
Some of these are replacement effects that double how many tokens would be created under your control, while others take you tokens you already have in play and multiply them
Equipment-heavy decks that contain Puresteel Paladin, Sigardas Aid, and Cloud, Planets Champion can also get a big kick out of Slash of Light if used correctly
One key way to make infinite mana is with 11 dorks in your graveyard with Songs of the Damned and Corpse Dance, both of which are playable here
Vega, the Watcher Vega, the Watcher gets better the more ways you have to cast spells from exile, and with mechanics like foretell and plot and the revival of suspend in Commander, its becoming easier than ever