Dargo, the Shipwrecker 

Legendary Creature — Giant Pirate
As an additional cost to cast this spell, you may sacrifice any number of artifacts and/or creatures. This spell costs {2} less to cast for each permanent sacrificed this way and {2} less to cast for each other artifact or creature you've sacrificed this turn.
Trample
Partner (You can have two commanders if both have partner.)
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Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Voltage Surge 90%
$0.13#19442
"As an additional cost to cast this spell, you may sacrifice an artifact."
Splitting the Powerstone 87%
$0.10#21308
"As an additional cost to cast this spell, sacrifice an artifact."
Incendiary Sabotage 87%
$0.05#26907
"As an additional cost to cast this spell, sacrifice an artifact."
Trash for Treasure 87%
$1.44#3784
"As an additional cost to cast this spell, sacrifice an artifact."
Esoteric Duplicator 83%
$1.16#6396
"Whenever you sacrifice this artifact or another artifact, you may pay {2}. If you do, at the beginning of the next end step, create a token that's a copy of that artifact."
Torgaar, Famine Incarnate 82%
$0.40#11546
"As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs {2} less to cast for each creature sacrificed this way."
Extus, Oriq Overlord // Awaken the Blood Avatar 82%
$0.53#11458
"As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs {2} less to cast for each creature sacrificed this way."
Triassic Egg 80%
#25853
"Sacrifice this artifact: Choose one. Activate only if there are two or more hatchling counters on this artifact."