Four lords souls

So I had some interesting ideas yesterday, and wanted to share for opinions:

What if, in some way, after using the Four Lords souls in the Lordvessel, you could gather special "abilities", like the other bosses souls?

Seath soul: ability to repair crystal weapons

Bed of Chaos soul: Izalith catalyst now can cast pyromancy

Four kings souls: curse increases the damage of cursed weapons: Ghost blade/dagger, cursed greatsword of artorias and now you can reverse your humanity while cursed.

Nito soul: Gravelord covenant addition: you can pray to the gravelord altar even after killing Nito.



This should work better if the only way to get those ablities were in NG+ and beyond.

Opinions?

Interesting ideas, I'm not entirely sure about Crystal considering the higher attack power, but Nito would be truly helpful.

Yea as crystal weapons can be buffed, they would be very strong, however, I feel like they should be more useful in some way

Also for Seath: crystal armor can now be upgraded with twinkling

I like the armor idea more, I really think giving letting crystal weapons be repaired overpowers them, unless they wear more quickly then maybe it would balance out if only the spell affected them.

I like them all. From, make it happen!

Haha I wish

Just adding more features later in game would make more interesting to go NG+, like the high level pvp at burg.

Maybe you could choose one of the four souls to use per NG

I know I'd love to see a gravelord altar but it would be a shame to grant useful in game bonuses to all the lords but Nito. LOLthink how bad he'd feel. I'd like to see some kind of change to my characters appearance though.