Serra Avatar's power and toughness are each equal to your life total.When Serra Avatar is put into a graveyard from anywhere, shuffle it into its owner's library.
Create a token that's a copy of target creature you control.Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)As long as Silverblade Paladin is paired with another creature, both creatures have double strike.
Choose an opponent. You and that player each sacrifice a creature. Each player who sacrificed a creature this way draws two cards.Choose an opponent. Return a creature card from your graveyard to the battlefield, then that player returns a creature card from their graveyard to the battlefield.
Choose one —• You draw five cards and you lose 5 life.• Create an X/X black Demon creature token with flying, where X is the number of cards in your hand.Entwine (Choose both if you pay the entwine cost.)
As Ixidron enters, turn all other nontoken creatures face down. (They're 2/2 creatures.)Ixidron's power and toughness are each equal to the number of face-down creatures on the battlefield.