Spells you would like to see

[malgor]

I haven't read through all of these, so maybe this has been mentioned, but I would like a dark spell that allows you to either sacrifice life or gain damage to increase your mana. It could be precise

This mage immediately gains 2 tainted markers and 6 mana

or

Roll 8 attack die- the mage loses rolled amount of life, and adds the rolled amount to his/her mana pool.

It would probably need to be epic.  Main thing would be the proper balance between life and mana.  should it be 1:1?  More life lost than mana gained?  The other way around?