Augenkreischer (Eyetwitch)
Augenkreischer 
Wenn der Augenkreischer stirbt, lerne eine Lektion. (Du kannst eine Lektion-Karte von außerhalb der Partie, die du besitzt, offen vorzeigen und auf deine Hand nehmen, oder eine Karte abwerfen und dann eine Karte ziehen.)
Regeltext (Oracle, Englisch)
When this creature dies, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)
Okulomagier sehen darin die ideale Zutat für Tränke. Die Fledermäuse sehen das anders.
Legalität
Regelhinweise (auf Englisch)
2021-04-16
If a card is brought into the game from outside the game, it will stay in the game until it ends or until its owner leaves the game, whichever comes first.
2021-04-16
If you bring a card into the game from outside the game in a Constructed tournament (or a Constructed game played under tournament conditions), you may select only a card from your sideboard. In casual Constructed games, the card comes from your collection.
2021-04-16
If you bring a card into the game from outside the game in a Sealed Deck or Booster Draft event, you may select only a card that is in the card pool that you built your deck from.
2021-04-16
If instructed to learn, you may do nothing. Discarding a card and putting a Lesson card into your hand are both optional.