Venca, Lord of Lies

Deathtouch, Undying
When Vena, Lord of Lies enters the battlefield, each player exiles a card from their hand. You may play cards exiled this way and may spend mana as if it were mana of any color to cast spells exiled with Vecna, Lord of Lies.
Pay 13 life: Remove any number of counters from target permanent or player.