Normal 

Hit Count: 1 
Ninjutsu  

Guillotine Drop Hit Count: 5 4.8x attack toward 1 enemy(s) in range and gives you 5 perfect dodge(s) for 1 turn(s). 

5 ★

6 ★

Secret Ninjutsu 

Lateral Bolt of Pain Hit Count: 5 8.2x attack to all enemies in range and knocks them back, with a 40% chance of immobilization for 2 turn(s). 
6 ★

Overview
Raikage is a Mid range unit with okay HP and Attack.
Pros  Cons 

Has perfect dodge on regular jutsu (handy for tanking)  Pacman AoE ultimate jutsu range (You can't attack people on the left most side) 
AoE Ultimate  Base attack lower than what you'd expect on Raikage 
High critical rate boost 
Raikage is a decent mid range unit with a great critical rate boost. His jutsu can hit 5k normal and 8k bonus element. His ultimate can hit 10k normal and 15k bonus element.
Ay is probably one of my favourite EM units. He is a mid range body unit with extreme utility, and you can grind him so you can have all his abilities. His health stat is an average 1584, and the attack stat is a lower 1144. His normal jutsu is single target with a 4.8x multiplier, and it grants 5 perfect dodges for 1 turn. His hidden jutsu is AOE (rare for an EM) with an 8.2x multiplier and knocks them back. Has a 40% chance to immobilize for 2 turns. Every single one of his abilities boosts his critical rate by 1.5x.
I could see him being used as a tank for EMs, but there are so many replacements for this man that I couldn’t see him being used for anything else.
Kami
Stats / Character Cost
Max Rarity  Element  Range  Max HP  Max ATK  Luck 

6★  Body  Medium  1584  1144  10 
Level  HP  Attack 

100  1584  1144 
Rarity  Character Cost 

6★  60 
Skills
Field skills provide bonuses when Fourth Raikage: Ay is near the range of the character in combat.
Rarity  Fourth Raikage: Ay's Field Skill 

5★  Boosts critical rate by 1x  1.4x 
6★  Boosts critical rate by 1.4x  1.9x 
Buddy skill is applied when Fourth Raikage: Ay is paired with the main attacker.
Rarity  Fourth Raikage: Ay's Buddy Skill 

5★  Boosts ATK by 100 
6★  Boosts ATK by 115 
Sync Skills
Affiliation  1  2  3 

Cloud  Sync with Body  Reduces Skill damage taken by 10%.  Sync with Cloud  Lowers rate of getting attack weakened by 5%   
Abilities
 Critical Rate Boost 1.5x
Boosts critical rate by 1.5x  Critical Rate Boost 1.5x
Boosts critical rate by 1.5x  Critical Rate Boost 1.5x
Boosts critical rate by 1.5x  Critical Rate Boost 1.5x
Boosts critical rate by 1.5x  Critical Rate Boost 1.5x
Boosts critical rate by 1.5x
Awaken
Awaken to 6★, costs 28000 ryo