Do I get that right that it deals 12 dmg extra + the total quanta cost of your permanents?
Comparing it to unstable gas it should deal at least 25 dmg (maybe even 35) in order to be balanced, because it costs a few more quanta, has no synergy with the vast majority of dmg dealing cards and most likely requires permanents that are off element. Also it does not bypass shields and does not ofer cc.
Let me check that: Rainbow: 29 dmg: 12 +4 from pulverizer +3 from sanctuary+4 from Hourglas +6 from dimensional shield
It could work but does not necessarily do that.
Mono: 12 + 7 from jade shield +2 from jade staff +2x4 from 2 feral bonds=29dmg
This is even less likely since it requires 2copies of a card and has no synergy with draw power from hourglas
I would suggest giving it 1 bonus dmg for each liferelated permanent including pillars.
Edit: How does it interact with unstable gases generated by nymphs? Does it still gain 6 dmg from them?