Thoughts on power level? Too hard/limited in use?

This is probably too limited. Maybe something like this, to be very useful in just about any deck:

Soulcaster

Enchantment Artifact - Fabrial

Whenever you cast an instant or sorcery spell, invest Soulcaster.

­, Remove an investiture counter from Soulcaster: Add one mana of any color to your mana pool.

­, , Remove two investiture counters from Soulcaster: Draw a card.

­, , Remove three investiture counters from Soulcaster, sacrifice a permanent: Search your library for a permanent card with the same converted mana cost as the sacrificed permanent and put it onto the battlefield, then shuffle your library.

That looks good. Let's see how well the formatting fits. I like how it has extra synergy with Red/Blue decks, which are our artifact focused decks in this block.

Nevermind, that's way too much text. If we get rid of the middle activated ability, it would fit though.

I know the art is completely random for this, but here's the template with text: http://mtgcardsmith.com/view/soulcaster-1

My thoughts exactly. We already have several cards drowning in text, we should probably try to limit making more of them.

Sorry. Gleaming just wasn't doing it for me.

That's fine, I just wanted to avoid too many one-word card names.

There's a lot of text on this card. I think it would be perfectly interesting without the mana ability.

Yeah, that's also my thinking. Samuel, would it be alright with you if we remove it? No need to make things more complex than it needs to be.

Alright, since we now have (((Soulcasting))), sure.

Hm, fair enough. Maybe I'll move Soulcasting to WoR.

Why?