Could Nether Seeds be changed to need Nether Cluster (mysticalagriculture:crafting_2) instead of essenceTier2/Nether Wart Block /shrug... The Dye Seeds (mysticalagriculture:dye_seeds) use their Dye Cluster (mysticalagriculture:crafting_1). It would make the nether cluster not completely useless :^)

Well for that to work I would have to remake the Nether Cluster, and the result would be pretty much the same :P