Höllischer Nachtschrat

Wenn der Höllische Nachtschrat angreift und nicht geblockt wird, bestimmt Dein Gegner eine Karte aus seiner Hand und wirft diese ab

Cazador nocturno abismal

Chassenuit des abysses

Cacciatore Notturno Abissale

深淵の夜魔

Abyssal Nightstalker

Whenever this creature attacks and isn't blocked, defending player discards a card.

Portal Second Age

If Abyssal Nightstalker attacks and isn't blocked, your opponent chooses and discards a card from his or her hand. (Ignore this effect if your opponent doesn't have any cards.)

An ability that triggers when something "attacks and isn't blocked" triggers in the declare blockers step after blockers are declared if (1) that creature is attacking and (2) no creatures are declared to block it. It will trigger even if that creature was put onto the battlefield attacking rather than having been declared as an attacker in the declare attackers step.