Weaken Spell (Metamagic)
You can cast spells to lesser effect.
Originally Posted by Shadowfoot of the Wizards Community forums.
Benefit: All variable, numeric effects of a weakened spell are reduced by 50%. A weakened spell does half as much damage, heals half as many hit points, or affects half as many targets, etc. Saving throws and opposed rolls are not affected, nor are spells without random variables. A weakened spell takes up a spell slot one level lower than the spell’s actual level, to no lower than 1st level.