1 Unaligned Domain
Casting flux: X
World Enchantment
Can only be casted as a reaction on a domain providing card casted by opponent. [So you don't need vision on the casted card - building/Astridian/...]
X is the cost of last played card. [So the card you're casting it as a reaction on.]
2 options what this one could do, I am not sure which will be better. (Or possibly combination, so you can write just which points you'd combine - or feel free to add anything yours..)
Option 1:
1a/ Gives you the same domain as a card it reacts on.
1b/ Salvage
Option 2:
2a/ Gives you a domain of your choice.
2b/ Is destroyed when the card it reacted on is destroyed/removed from game/ sacrifaced.
2c/ Mirror of Domains can't be target of spells.
2d/ Lifespan (X)
They thought that they can get ahead? Let show them how much they were mistaken! Zurken the Black [Of course isn't necessary and can be adjusted too
]I put up 2 options because I am not sure if the 2nd one wouldn't be too strong.
Also thought about other abilities (b/,c/,d/) but am not completely sure which of them should be there. I hope you'll help me to adjust it!
But definitely it's gonna provide lot of fun - and another tactical possibilities.
Made especially as a reaction on jed's question about Throne nerfing. (I suppose that's the one against which it would be used mainly.)
let me know, I'll try to rewrite it to make it more understandable.. 
