Minerva, Lightsworn Maiden

When you cast Minerva, Lightsworn
Maiden, you may search your library for a dragon creature card with mana value less
than or equal to the number of differently named legendary creatures in yor graveyard
and put it into your hand.
When Minerva, Lightsworn Maiden is put
into yor graveyard from your hand or library, mill 2 cards.