You can rob a creature of one of its inherent
aptitudes and give that capability to an ally. Choose
one ability score. One creature of your choice
within range makes a saving throw with that ability
score. On a failure, the target has disadvantage on
checks and saving throws with the chosen ability
score. In addition, the target has disadvantage on
attack rolls using the chosen ability score, and deals
only half damage with such attacks if they are
weapon attacks.
When you cast this spell, choose another willing
creature within 30 feet. For the duration, that
creature gains advantage on all ability checks and
saving throws with the ability score you chose. In
addition, that creature gains 25 temporary hit
points.
At the end of each of the first target’s turns, it can
make a saving throw against the spell. It makes the
saving throw with the ability score you chose, but
the disadvantage inflicted by this spell does not
affect saving throws against it. On a successful save,
the spell ends.