Eneru has proven to be one of the strongest figures in one piece world even after marinford i still think his one of the strongest.So could he be considered at the same level as a Shichibukia?Facts speak for their selves.....
- his a master of mantra allowing him to read acttacks and even hear thoughts and voices of others at far distances.
- is an excellent combatant with inhuman strenght and can move at the speed of light like kizaru.
- is a genius equal to that of Crocdile.
- and has mastered his DF abilities to the point where he can instantly kill anyone in mere seconds destroy whole islands and can take a punch.
With these being said i believe that Eneru has the power to hold a spot in the Shichibukai and is an equal to them he only lose to luffy because of him being a rubberman.So does he have what it takes to be a Shichibukai.