Waters of Mormon

Whenever a creature you control becomes tapped,
you may pay {1}. If you do, draw a card.
"And it came to pass that he said unto them: Behold,
here are the waters of Mormon ... and now, as ye are desirous to come into the fold of God, and to be
called his people, and are willing to bear one
another's burdens, that they may be light;"
— Mosiah 18:8