hushbringer vs mayhem devil / krenko, baron of tin street
I had a Hushbringer and my opponent sacrificed an artifact creature, which caused both Mayhem Devil and Krenko, Baron of Tin Street to trigger which should not happen per the following Gatherer ruling:
The trigger event doesn't have to specifically refer to "creatures." In these cases, the trigger event may also refer to something being "put into a graveyard from the battlefield." For example, an ability that triggers "whenever an artifact is put into a graveyard from the battlefield" won't trigger if an artifact creature dies while Hushbringer is on the battlefield.
(2019-10-04)
Kokonots#07478
shared this idea
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Rezzahan#77802
commented
Mayhem Devil triggers on the action of sacrificing. Hushbringer has no interaction with that.
Krenko's last ability should be stopped by Hushbringer, if an artifact creature is sacrificed, yes. But did you maybe confuse the activation of Krenko's second ability, the one that does the sacrificing, with triggering the last one? Hushbringer does not stop activated abilities.
Your issue may lie in the common mistake of grouping activated and triggered abilities together as somehow being the same or similar. They are neither. Activated abilities are as different from triggered abilities as enchantments are from creatures. Both use the stack and can be responded to, and that's about all they have in common. Only activated abilities can be activated, only triggered abilities can trigger. You can never trigger an activated ability, and you can never activate a triggerd ability.