In 4.0 shark bomb had a buff only to critical rate. Now, in 5.0, got the buff to injury too and the chakra stealing (you can read the description in game right now). 6.0 (lets call the next patch this way...) add a skillbreaktrough for shark bomb that add the lightning attribute and paralysis (as far as i know).

AGK works fine with water main and shark bomb too since has a knockdown chase that also has the 10 combo effect. Water main steals chakra and agk gets buffed.

+1

But if you run monkey king as summon mystery you get it even if you didn't select the clone passive. That said if all the 3 modifications had to come on live selecting again the clone passive would be indeed a good option for her, differently from now (i doubt he meant to propose 3 different modifications, i think he meant to add all the 3 together). i think he just talked about the clone to give again a value to that passive too, since right now is largely outclassed by the other 3.

And no, the main issue right now is not ignition, but the fact you do not heal who is dead (that's why, i suppose, he brought in the fact regenerative healing jutsu should also resurrect).

If you run, lets say, tsunade sannin war, sakura summer and water main with a tank or kushina habanero in move 1 you are left with 2 ninjas in round 2 if you face edo hiruzen or agk teams. Thing that is not true if you run an heavy shielding team (like bee sst, naruto six paths/kurama/six tails, normal gaara, earth main).

If instead water main is alive in round 2 and faster than the enemy shisui/minato hokage, with his suggested modifications both sakura and tsunade get back to life and heal the team back by around 1/2 of the total life, making so the battle go on ul to round 3 at least with the compulsion that you need to kill first water main.