The Promise of Maidenhood

Select a lvl 1 creature on your field, and another
lvl 1 creature from your deck; said creature on
your field gains 1 lvl for 3 turns (this does not
affect tribute summoning.) Said creature also
cannot attack for 3 turns. If said creature remains
on your field at the end of the 3 turns; add the
card selected from your deck to your hand. Said
card on your field no longer gains a lvl due to this
card's effect, and can attack. However, said card
on your field can no longer be tributed.