Great Oak Guardian 

Creature — Treefolk
$0.15 #6747 0.19 10.9 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?
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"Untap all creatures you control. Creatures you control with flying get +2/+2 until end of turn."
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"Creatures you control get +1/+1 and gain lifelink until end of turn. Untap those creatures."