Olo & Oana of Two Minds

Double Strike, Vigilance.
Whenever you draw one or more cards you may
pay {1}. If you do, each opponent loses 1 life and
you gain life equal to the life lost this way.
At the beginning of your upkeep, if Oloa & Oana
of Two Minds is in play or your command zone,
draw two cards, discard a card, and put a card
from your graveyard on the bottom of your
library.
"Oloro's wives are even more formidable."