Great Oak Guardian 
Creature — Treefolk
$0.15 #6781 0.50 10.8 years
Flash (You may cast this spell any time you could cast an instant.)
Reach
When this creature enters, creatures target player controls get +2/+2 until end of turn. Untap them.
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Cards similar to Great Oak Guardian 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, untap another target creature you control."
+1 more matching line
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"When this creature enters, untap target creature."
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"When this creature enters, untap target creature."
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"Untap all creatures you control. Samurai creatures you control get +1/+1 until end of turn."
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"Creatures you control get +1/+1 and gain lifelink until end of turn. Untap those creatures."
Roar of the Kha81%
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"• Untap all creatures you control."
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"Reach"
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"Creatures you control get +2/+0 until end of turn. If it's not your turn, untap those creatures."
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"When this creature enters, creatures you control get +2/+1 until end of turn."
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"When this creature enters, creatures you control get +1/+1 until end of turn."
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"When this creature enters, creatures you control get +1/+1 until end of turn."