With GT:
-Zombie: Methane
-Skeleton: Bone meal -> Calcium cell+ Carbon cell from charcoal (forestry)-> calcium carbonate to triple iron ore yield in industrial blast furnace
-Blaze: Blaze rod generator, sadly blaze-> coal dust is removed in latest GT update, otherwise blaze powder-> coal dust-> thorium.
-Endermen: Enderpearl: for Be cell (Iridium reflector and fusion coils), K and N2 cell for saltpetre and to ITNT
-Endermen+Blaze: Endereye for the magic energy converter fuel (another magic generator from GT)
-Creeper: ITNT for iridium plate
-Zombie: Methane
-Skeleton: Bone meal -> Calcium cell+ Carbon cell from charcoal (forestry)-> calcium carbonate to triple iron ore yield in industrial blast furnace
-Blaze: Blaze rod generator, sadly blaze-> coal dust is removed in latest GT update, otherwise blaze powder-> coal dust-> thorium.
-Endermen: Enderpearl: for Be cell (Iridium reflector and fusion coils), K and N2 cell for saltpetre and to ITNT
-Endermen+Blaze: Endereye for the magic energy converter fuel (another magic generator from GT)
-Creeper: ITNT for iridium plate