The Arrival

1. Destroy target land. The Arrival deals 4 damage to all creatures.

2. You may discard any number of cards. For each card discarded this way, draw two cards. Exile any planewalkers drawn this way.

3. Until the end of turn, you may cast any planeswalker cards that were exiled by The Arrival. Until the end of turn, planeswalker cards cost {1} less to cast for each Alien creature card in your graveyard.