In this case, the condition is that when an enemy or ally attacks you, you will dodge his first attack or effect of the card you are being attacked with, preventing all damage of that single attack.
This also works on your own cards, e.g. if you are in the range of the previously explained Exploding Bunny you can actually dodge the damage of that card.
Check the post on card lay-out for details on the bottom symbols and numbers.
As with all these card spotlights, please note that art, wording and values are subject to change.