Hello there folks, I'm pretty new to the game and so I decided to go with the newest LRIG's I could find to fit what I would like. Currently I only have three decks built and would appreciate any help you all might have to offer to fine tune and/or just better my decks. I do ask though that if you are going to critique that you do so in a constructive and intelligent manner (IE, don't be a dickbag and just comment 'bad' or make quick calls without explaining as to why you're suggesting I do this and/or that) thank you in advance. Without further ado, here's my decks!
Edit #1: Changed a few things around, Arts wise, will be looking to try and tune down the number of spells.
Edit #2: Updated the decks a bit, changed a few things around, hopefully they are marginally better.
Amethyst Atrophy (Nanashi) []
Signi: (40 w/ spells & 20 LB's)From level 1-4
3 x Servant O2
3 x Echinoco, Natural Bacteria (LB)
4 x Servant D (LB)
4 x Natto, Natural Bacteria (LB)
3 x Mentagro, Natural Bacteria (LB)
3 x Oigona, Natural Bacteria Princess (LB)
3 x Nihokokabi, Natural Bacteria (LB)
Spells:
2 x Bad Medicine
2 x Lovely Bio
Arts:
1 x Bio Hazard / Fatal Punish (bet 2)
1 x Flaming Dragon, Poisonous Snake
1 x Bloody Slash
1 x Spread Death
LRIG:
Nanashi, That Nothing
Nanashi, That One Remodeled
Nanashi, That Two Remodeled
Nanashi, That Three Remodeled
Nanashi, That Four Another (Bet 2)
Emerald Enhancement (Mel) 
[]
Signi: (40 w/ spells & 20 LB's)From level 1-4
4 x Servant O2
4 x Code Eat Torochee (Acc)
3 x Code Eat Fripota (LB)
2 x Servant D (LB)
3 x Code Eat Fried Egg (Acc)
4 x Code Eat Ketchu (LB & Acc)
3 x Code Eat Curry
2 x Code Eat Burger
3 x Code Eat Teaksauce (LB & Acc)
4 x Code Order Steak (LB)
4 x Code Eat Hambur (LB)
Spells:
2 x Three Swords
2 x Extreme Food
Arts:
1 x Common Destiny
1 x Painful Separation from Loved Ones (bet 1)
1 x Vanish Like Mist
1 x Storm Warning
LRIG:
Mel-Kalua
Mel-Martini (Bet 3)
Ruby Reinforcement (Ril) []
Signi: (40 w/ spells & 20 LB's)From level 1-4
4 x Perry, Black Ship of the Foreign Country (LB)
3 x Servant O2
3 x Servant D2
4 x Nohime, Returning Butterfly of Earnestness (LB)
3 x Alexand, Peerless Conquest (LB & Rise)
2 x Bors, Round Table of the Holy Body
4 x Sanzo, Tibetan of the Golden Mountain
3 x Akechi, Ruler of Three Days (LB & Rise)
3 x Goku, Western Monkey of the Sage's Stone (LB & Rise)
3 x Odanobu, Great Demon of Pride (LB & Rise)
Spells:
2 x One Swing of the Divine Current
2 x Three Swords
Arts:
1 x Your Flame, Martyred Name / Destruct Through
1 x Dragon Extinguishing Chain
1 x Phosphorescent Samsara / Flaming Dragon, Poisonous Snake
1 x Flameless Isolation (bet 2)
1 x Finishing Touches on the Fire Dragon (bet 2)
LRIG: (From 0-4)
Ril, Memory of Truth (bet 1)