Now we know 5 Planets are pretty strong, did Doflamingo really know about them how did they even fail to kill him if they ''really'' tried?
Doflamingo knew the national treasure hidden in Mariejoa so that the Celestial Dragons had no choice but to accept his demands:
''Because I know all about a crucial treasure...''
''When they realized they couldn't kill no matter how hard they tried, they become awfully coperative...''
''If I had the power of your Ope Ope no Mi in my hands that day... I would have been able to use the national treasure of Mariejois to control world itself''
While I was thinking, Darkness and Sea Water might be one of the counters to 5 Planets ''immortality'', perhaps Ope DF could be another counter as well based on Doflamingo's plan to overthrow them.
But not sure what Doflamingo really knew about them and how thought he could control the Marijoa with Ope DF is still a mystery.
Doflamingo knew the national treasure hidden in Mariejoa so that the Celestial Dragons had no choice but to accept his demands:
''Because I know all about a crucial treasure...''
''When they realized they couldn't kill no matter how hard they tried, they become awfully coperative...''
''If I had the power of your Ope Ope no Mi in my hands that day... I would have been able to use the national treasure of Mariejois to control world itself''
While I was thinking, Darkness and Sea Water might be one of the counters to 5 Planets ''immortality'', perhaps Ope DF could be another counter as well based on Doflamingo's plan to overthrow them.
But not sure what Doflamingo really knew about them and how thought he could control the Marijoa with Ope DF is still a mystery.