Thread:SSJ Leonidas/@comment-4199482-20180129000410/@comment-4199482-20180206222545

6 turns must pass and your HP < 50%. Then they will automatically fuse into Vegito. Note if it's like other HP restricted mechanics then they must be in the turn where you drop HP < 50% to trigger it. If you drop below 50% HP and heal before they show up it won't work.

BTW how did you find this message wall? Asking on the card page itself is generally better.