Sow the Seeds (3.5e Spell)

This spell binds you to the earth and nature, causing you become essentially invulnerable as long as there is a plant creature nearby. You tap into the earth to gain fast healing equal to your caster level. In addition, half of all damage you incur is transferred to the nearest allied plant-type creature, switching to the next one should the plant die. By taking an immediate action, you may also redirect an effect that specifically targets you to a plant creature. If there is no eligible creature within Close range, damage or effects cannot be transferred.

As an move action, you may deal up to 10 hit points per caster level to a single willing plant creature within Close range and heal yourself by an amount equal to that drained (up to a maximum of the plant‘s remaining hit points). Once you reach your full normal hit point total, you gain any new hit points as temporary hit points that last until the end of the spell’s duration.

Inversely, you may take a move action to sacrifice your own hit points to summon a treant with a number of hit points equal to the amount you deduct from your own total. The treant may appear anywhere that you designate within Close range.