"To'kash the Bloodchiller" is a unique and specific name that may not have perfect synonyms. However, one could say "To'kash the Fear-Inducing" or "To'kash the Dread-Bringer." Another option is to use words that describe the effects of To'kash's actions, such as "To'kash the Terror-Instigator" or "To'kash the Heart-Stopper." Alternatively, one could focus on To'kash's physical attributes and call him "To'kash the Icy-Cold" or "To'kash the Frost-Infused." These variations on the name "To'kash the Bloodchiller" may not be exact synonyms, but they capture the essence of the original name.