Flying Rule 702.9 Glossary

A keyword ability that restricts how a creature may be blocked. See rule 702.9, “Flying.”
Unleash Rule 702.98 Glossary

A keyword ability that allows a creature to enter the battlefield with a +1/+1 counter on it and stops it from blocking if it has a +1/+1 counter on it. See rule 702.98, “Unleash.”

Rulings (4)

April 15, 2013 Wizards of the Coast
The unleash ability applies no matter where the creature is entering the battlefield from.
April 15, 2013 Wizards of the Coast
You make the choice to have the creature with unleash enter the battlefield with a +1/+1 counter or not as it’s entering the battlefield. At that point, it’s too late for a player to respond to the creature spell by trying to counter it, for example.
April 15, 2013 Wizards of the Coast
Putting a +1/+1 counter on a creature with unleash that’s already blocking won’t remove it from combat. It will continue to block.
April 15, 2013 Wizards of the Coast
A creature with unleash can’t block if it has any +1/+1 counter on it, not just one put on it by the unleash ability.

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