Troll Gut

You consume a piece of troll flesh, enhancing your own body and that of your allies with the regeneration of trolls, however the troll flesh itself also expands causing potential danger to the caster. when you cast this spell and the start of your subsquent turns, you and up to 3 allies of your choice regain 10 hitpoints as the regeneration takes hold however you take 3D10 force damage as the trolls flesh expands in your body rupturing your organs and causing immense pain. 

When this spell is cast at a higher level you may choose an additonal ally per spell level above 2 to effect with this spell.