Mazirek, Kraul Death Priest
Commander 2015 — mythic
Legendary Creature — Insect Shaman
Mazirek, Kraul Death Priest rulings:
2020-08-07: Mazirek's last ability is a triggered ability, not an activated ability. It doesn't allow you to sacrifice a permanent whenever you want; rather, you need some other way of sacrificing permanents.
2020-08-07: If you sacrifice a permanent as part of casting a spell or activating an ability, Mazirek's last ability will resolve before that spell or ability.
2020-08-07: If you sacrifice Mazirek and other permanents at the same time, Mazirek's last ability triggers for the other permanents.
2020-08-07: A legendary permanent that is put into a graveyard because of the “legend rule” isn't sacrificed.