The Blood-eye Dragon's will would definitely not allow any other almighty beast's will to approach its "territory" or domain. Moreover, Merlin's Awareness was the "territory" of the Blood-eye Dragon's will.
As it was about to expel the Two-tailed Mamba's will, a colossal will immediately descended. Before this mighty will, the Blood-eye Dragon's will could not resist it at all.
"Great Master!"
When it sensed this will, the Blood-eye Dragon appeared endlessly fearful. It understood rather well this powerful master it had parasitized; who possessed the terrifying capability of defeating its will. Now, just this presence alone made it incomparably frightened.
The Blood-eye Dragon even wondered if Merlin was a sacred beast. Otherwise, even a top-tier almighty beast's will would not have such a fearsome dominance.
"Blood-eye Dragon, as your master, I need you to merge with more almighty beast's will!"