Basilosaurus are unaffected by their grab. Just go in with a high lvl basilo and its an easy kill to gather black pearls.

To tame use a plesio or mosa or turtle with about 15k hp and some armor and have your tribe mate stay on till youve fed it. Then swim up and have your mate dismount and also swim up. Keep the bait on follow and the tuso will most likely let go. Wait for about 7 to 10 minutes. Force feed your bait and go back in. Very easy with 2 people. WEAR flippers!

More Tusoteuthis Taming & KO Tips