2 Permanents

[Thalas]

True light
Permanent Cost: 6 
All your cards cost light quanta to play(Example: armagio would cost 5  and shard of divnity 3  )

Dark Convergence
Permanent Cost: 3 
Element of your creatures become Darkness.

[Hobnob5000]

It does it for all creatures? Wouldn't that defeat the object of the separate elements. Maybe if it only worked for one or two, but I think that would be a tad unbalanced. It would make light supreme ruler over all other elements.

[Kael Hate]

True light
Permanent Cost: 6 
All your cards cost light quanta to play(Example: armagio would cost 5  and shard of divnity 3  )

Extremely Overpowered because like rainbow you can use the best of all elemental groups but now you don't even need to worry about a lack of the appropriate quanta. If you are going to copy cards from other games, understand why they are weak or strong in that game and how the conversiion will occur when bringing it into elements.

(http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=106639&type=card)

Dark Convergence
Permanent Cost: 3 
Element of your creatures become Darkness.

Interesting in that it would allow you to abuse Eclipse for Ball Lightning. What other reason would I use this card?

(http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=5622&type=card)

[Rastafla]

Dark Convergence
Permanent Cost: 3 
Element of your creatures become Darkness.

Interesting in that it would allow you to abuse Eclipse for Ball Lightning. What other reason would I use this card?

(http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=5622&type=card)

I have a copy or two of this MtG card in a box.

And on that note i would like to point out that many suggestions in the forum are exact copies of MtG cards. I'm fine with it when they are like direct dmg spells/effect etc but bigger cards like those in OPs post where they would have huge ramifications for the game is just wrong, there's little thought behind the suggestion as it would cause such upheaval.