Infernal Captor
Creature — Devil Rogue
Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, gain control of target artifact or creature until end of turn. Untap that permanent. It gains haste until end of turn.
Possession is nine-tenths of the law. His fist is the other tenth.
Josu Hernaiz
Modern Horizons 3 (MH3)
• #125Rulings
If the creature with exploit isn't on the battlefield as the exploit ability resolves, you won't get any bonus from the creature with exploit, even if you sacrifice a creature. Because the creature with exploit isn't on the battlefield, its other triggered ability won't trigger.
(wotc • 2024-06-07)
You choose whether to sacrifice a creature and which creature to sacrifice as the exploit ability resolves.
(wotc • 2024-06-07)
A creature with exploit "exploits a creature" when the controller of the exploit ability sacrifices a creature as that ability resolves.
(wotc • 2024-06-07)
You can target an artifact or creature you already control (including Infernal Captor) with Infernal Captor's last ability just to untap that permanent and give it haste.
(wotc • 2024-06-07)
You can sacrifice the creature with exploit if it's still on the battlefield. This will cause its other ability to trigger.
(wotc • 2024-06-07)
You can't sacrifice more than one creature to any one exploit ability.
(wotc • 2024-06-07)
Rulings
If the creature with exploit isn't on the battlefield as the exploit ability resolves, you won't get any bonus from the creature with exploit, even if you sacrifice a creature. Because the creature with exploit isn't on the battlefield, its other triggered ability won't trigger.
(wotc • 2024-06-07)
You choose whether to sacrifice a creature and which creature to sacrifice as the exploit ability resolves.
(wotc • 2024-06-07)
A creature with exploit "exploits a creature" when the controller of the exploit ability sacrifices a creature as that ability resolves.
(wotc • 2024-06-07)
You can target an artifact or creature you already control (including Infernal Captor) with Infernal Captor's last ability just to untap that permanent and give it haste.
(wotc • 2024-06-07)
You can sacrifice the creature with exploit if it's still on the battlefield. This will cause its other ability to trigger.
(wotc • 2024-06-07)
You can't sacrifice more than one creature to any one exploit ability.
(wotc • 2024-06-07)