Chidori Shark Bomb and Experimental Ninjutsu are superior than those LM skills you have in best.

Chidori Shark bomb has higher crit and crit damage, you get buffed better through experimental ninjutsu. And even if everyone is running "immune teams", you can still interrupt from the higher chance of chaos or absorb their chakra.

Unfortunately, it didn't just get paralysis, it crits more and harder as well.

Original:

Causes Water Attribute Damage to up to 4 units in the enemy lineup and Knockdown to the selected unit, while absorbing all enemy chakra. This has a High Critical Rate and Injury

Elemental Skill:

Causes Lightning Attribute Damage up to 4 units in the same lineup and paralysis for 1 round. The target enemy will suffer from Knockdown. This skill has additional injury/crit bonuses.

As you can see, regarding the differences. Chidori Shark Bomb will hit harder and hit harder more often since its Crit and Injury is higher than the original.

someone can help me and tell wich lightning main skills are (buff / support / atak skills) to get ?