In that set, Teferi was depicted with a characteristic robe, headdress and staff. Check it out:
ExcludeTeferi's Care
Teferi's Moat
Note how Teferi holds back those bad guys above. Can you tell what group that's supposed to be across the moat? Here's a hint.
You can also see Teferi on Disrupt and Teferi's Response, among others. (Teferi also made a Teferi's Puzzle Box once. Look, a Puzzle Week tie-in!)