If Gibil really copied Medj and realized that he was Gorio, why didn't he kill him immediately, but wasted an extra block?
There are several possibilities here:
1. Medj blocked Gibil's copying with his own, and the second block was from Seliga/Gorio. Accordingly, the remaining block went to Mafster.
2. Medj was blocked by Seliga and Gorio, and Gibil came to hang out with Mafster.

