Avara, Embedded in the Guilds

Avara, Embedded in the Guilds comes into play
under a chosen opponent's control.
Avara, Embedded in the Guilds is unblockable.
During your chosen opponent's draw step, that
player must discard a card and you may draw a
card. Avara, Embedded in the Guilds must attack
you every turn. If she would deal damage to you,
reduce that damage to zero and draw a card.