Leviathan's Handmaid

When Leviathan's Handmaid enters the
battlefield, you may discard your hand. If you do,
then return target instant or sorcery card from
your graveyard to your hand.
Whenever you discard one or more cards and
there are two or more card types among those
cards, you may draw a card.
The overwhelming psychic presence of the Titan calls a
swarm of servants to attend it.