Havoc Jester
Creature — Devil
Whenever you sacrifice a permanent, this creature deals 1 damage to any target.
To the Rakdos, screams of delight and screams of terror are one and the same.
Jason A. Engle
Commander Masters (CMM)
• #230Rulings
Havoc Jester's ability triggers when you sacrifice it. If you sacrifice other permanents at the same time, it triggers for them as well.
(wotc • 2020-06-23)
If you sacrifice a permanent as part of casting a spell or activating an ability, Havoc Jester's ability will resolve before that spell or ability.
(wotc • 2020-06-23)
Havoc Jester's 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.
(wotc • 2020-06-23)
A legendary permanent that is put into a graveyard because of the “legend rule” isn't sacrificed.
(wotc • 2020-06-23)
Rulings
Havoc Jester's ability triggers when you sacrifice it. If you sacrifice other permanents at the same time, it triggers for them as well.
(wotc • 2020-06-23)
If you sacrifice a permanent as part of casting a spell or activating an ability, Havoc Jester's ability will resolve before that spell or ability.
(wotc • 2020-06-23)
Havoc Jester's 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.
(wotc • 2020-06-23)
A legendary permanent that is put into a graveyard because of the “legend rule” isn't sacrificed.
(wotc • 2020-06-23)