Based on the artwork of this card, you are supposed to theoretically control the 6 attribute link monsters? That's probably not gonna resolve ever. A much better option though, would be Knightmares
Mermaid - Water
Phoenix - Fire
Goblin - Wind
Cerberus - Earth
Unicorn - Dark
Gryphon - Light
Even if you managed to get all 6 Knightmares on the field at the same time ( it's not the most impractical thing, but most Knightmare combos usually don't end with all 6 Knightmares ) you probably wouldn't need this card since you would be winning the duel with the Knightmare effects ( they cannot be targeted or destroyed by card effects, they cannot be destroyed by battle also all monsters your opponent controls lose 1000 attack, and your opponent cannot activate the effects of special summoned monsters, and you get to draw 6 cards for your draw phase ). Having a raigeki probably isn't necessary at that point, given that your opponent will be extra-linked and unable to summon monsters from the extra deck, and with Iblee on the field they cannot special summon.
Long story short - the seemingly most ideal ways to get this effect off already have their own great win conditions that don't need an unsearchable highly coniditional raigeki.
speaking of which, burning, life gain, attack boosting and attack decreasing are nice, but going this far out of your way to get those doesn't seem very worth it. You would probably just be better off playing dark hole and raigeki, those cards just destroy monsters with no activation requirements ( like controlling 6 different attribute monsters ).