黑玉教授 {4}{B}{B}

傳奇鵬洛客 — 莉蓮娜

魔藝～每當你施放或複製瞬間或巫術咒語時，每位對手各失去2點生命，且你獲得2點生命。

+1：你失去1點生命。檢視你牌庫頂的三張牌。將其中一張置於你手上，其餘的牌則置入你的墳墓場。

−3：每位對手各犧牲一個生物，且須是由其操控的生物中力量最大者。

−8：每位對手各可以棄一張牌。若其未如此作，則其失去3點生命。將此流程再重複六次。

Loyalty: 5

Illustrated by Kieran Yanner

en es fr de it pt ja ko ru 汉语漢語 ⋮

Only the English version of a Magic card receives Oracle updates and errata. View this card in English. (Scryfall note)
For Professor Onyx's second loyalty ability, if an opponent has multiple creatures with the greatest power, that player choose which one to sacrifice. The next opponent in turn order chooses which creature they are sacrificing, then each other opponent in turn order does the same, knowing the choices made before them. Then all chosen creatures are sacrificed at the same time. (2021-04-16)
For Professor Onyx's last loyalty ability, "this process" is the following: First, the next opponent in turn order may choose a card in hand without revealing it, then each other opponent in turn order does the same. Then all the chosen cards are revealed and discarded at the same time and each opponent who didn't discard a card (whether they chose not to or had an empty hand) loses 3 life. This all will happen seven times, for a maximum loss of 21 life per opponent. (2021-04-16)
If Professor Onyx seems familiar, it's probably because you've seen this type of planeswalker before. (2021-04-16)
Each magecraft ability has a different effect, although they all have the same trigger condition, whenever you cast or copy an instant or sorcery spell. (2021-04-16)

For example, if you control Archmage Emeritus and cast an instant or sorcery spell, Archmage Emeritus's magecraft ability will trigger and you will draw a card. (2021-04-16)
If an effect creates a copy of an instant or sorcery spell, this will also cause the magecraft ability to trigger. (2021-04-16)
If an effect creates multiple copies of an instant or sorcery spell, magecraft abilities trigger once for each copy created by the effect. (2021-04-16)
Some effects instruct you to copy an instant or sorcery card in a zone other than the stack. These copies do not cause magecraft abilities to trigger. However, most effects that do this also allow you to cast the copy, and casting the copy will cause magecraft abilities to trigger. (2021-04-16)