If a character flips a hybrid battle icon during attack/defense and the character is not the relevant trait, is it considered a battle card with no battle icons?
[Source: Aequitas]
No. If, for example, Barricade flipped a Hull Down, it is considered a battle card with 1 orange battle icon for the purposes of any flip effects and not a card with no battle icons. Of course, as Barricade is not a Tank, it does not provide him with +1 to his attack.
It means that any cards that reference being in Plane or Tank mode are active in both of
Overlord’s modes. This means cards like
Composite Armor can be put on him in either mode. When you flip a Hull Down in either mode it is active, etc.