Master Sun's observation of the Binding Seal Beast's abilities and intelligence was based on the Red Entwining Mark Beast. It had schemed for many years to seize the Immortal Apricot Tree to escape the entanglement with the Treasure Seal. The entire plan was well thought out, and even when an unexpected factor arose, it decisively made the right choice to cooperate, achieving success in one fell swoop!
Although a second seizure might be necessary to transform back into the Desolate Dragon Beast before truly accomplishing its goal, it demonstrated its brilliance.
Reflecting on the opponents Master Sun encountered in the Lower Realm, he believed that none of them would be able to perform better in the Red Sealing Beast's situation.
The schemes and arrangements of the Crimson Sealing Beast were impressive even in the Heaven Realm.
