(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Look at the top X cards of your library. You may put any number of land and/or legendary permanent cards with converted mana cost X or less from among them onto the battlefield. Put the rest into your graveyard.
At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control.
Whenever a creature you control attacks, it gets +1/+0 until end of turn for each other attacking creature that shares a creature type with it.
Whenever a creature you control dies, each other player sacrifices a creature.
