Chaotic Skyfire Diamond meta gem don’t need 2 yellow. (just need 2 blue)
But like of Relentless Earthstorm Diamond, always uses 2 yellow gems.
And when checking Epic Gems, can see use the haste gems.
However, the haste Gems can be used in Phase 5.
I’d like to see the calculations excluding the haste gems in phases 3-4.