Redtooth Genealogist 
Creature — Elf Advisor
$0.12 #24011 0.27 3.1 years
When this creature enters, create a Royal Role token attached to another target creature you control. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has ward 
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Cards similar to Redtooth Genealogist 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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"When this creature enters, create a Royal Role token attached to another target creature you control."
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"• Create a Royal Role token attached to that creature."