Doc Ock, Sinister Scientist 

Legendary Creature — Human Scientist Villain
$0.18 #12719 0.44 1.0 years
As long as there are eight or more cards in your graveyard, Doc Ock has base power and toughness 8/8.
As long as you control another Villain, Doc Ock has hexproof. (He can't be the target of spells or abilities your opponents control.)
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Cards similar to Doc Ock, Sinister Scientist 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.
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