Whenever Madame Talisveri Eris deals combat damage to a player or planeswalker, surveil 1, then draw a card. (To surveil 1, look at the top card of your library. You may put it into your graveyard.)

Delirium—As long as there are four or more card types among cards in your graveyard, Madame Talisveri Eris can't be blocked.