Sweet; very much like the card (though I kinda saw it as a 1/4 instead of a 0/5 but whatever). Here's some more chars for the cards:
Gakuryoku - Seiken's Human/Eagle Summon. Generic Raiton user, though I will be modding her very soon, so you may wanna wait until after that mod. Probably balanced white creature with flying.
Dokueki Kenshin - Taijutsu/Genjutsu based fencer with snake-based genjutsu and a Raiton affinity. Most likely blue.
Ikimono Tetsuo - Ninjutsu Martial Arts with a specialty in tracking and pursuit. Most likely red white w/ dual color fire breathing.
Nenshou Omoi - Medic Ninja. Plain and simple. Probably green and low cost dealing with life gain.
Ibara Rubi - Ranged Raiton/Katon attacker with piercing/exploding senbon. Probably red/white or red/green with one tap effect to add +1/+1 counters and another tap effect to deal damage to target creature or player equal to her power.
Ranpu Hantei - Raiton/Suiton Ninjutsu specialist. Probably blue or blue/black even. You may wanna do something with his phasing ninjutsu, such as giving him shadow. You might also want to give him the ability to counter activated abilities.
Ryoku - Ranpu's Spirit Summon. Sprouts winds, shoots blue fire, and uses a ebony rapier to cut people. Enough said. Straight red/black, possibly with activated shadow.
Sister Peace - Ranpu's Henchwoman. Uses Pacifism genjutsu and defensive Doton techniques. Most likely blue/green with redirecting damage and a payable +0/+1 effect.
Brother War - Ninjutsu Martial Arts with a tower shield and an extendable sword. Probably red/green with a payable +1/+0 effect and a triggered effect like "when Brother War blocks, he gains +0/+5 until end of turn" or something like that.
Go hog wild, Zangy.