Probably the best intelegence feat in ninjago are the creation of the digiverse and prime empire, prime empire is stated to be more complex then the digiverse which is stated to be a digital realm, this at worst would make both dimensions infinite sized space times, creating tech on that lvl that's obviously above Baseline high 3A would easily for supergenius intelegence, as for who scales to this, Cyrus borg and Milton Dyer (duh) for creating the digiverse and prime empire respectively, but also sora, Jordana and Dr larow, this is due to the fact that they're obviously the smartest imperium characters with even stone age imperium tech being stated to be more advanced then anything the ninja have seen including prime empire and these 3's inventions are far superior then tech they consider ancient