Why does the green ability say "Tile gen/AP gain" ? It does neither, it's more suited to be described as "damage/stun" like the purple one. Maybe more covers add different effects, but a more likely explanation is some kind of typo?
Pre-release ability precis:
Damage/Stun - 6 AP - If invisible, deals bonus damage otherwise deals damage and stuns target for 1 turn. Damage/Stun - 14 AP - Deals damage to target enemy ignoring effects of any protect tiles, and stuns a random enemy for 2 turns. Guard/Invisible 0 AP - (PASSIVE) Enemy strike tiles add 45% less damage (to a minimum of 1). While enemy is stunned, character is invisible.
While any enemy is stunned, this character is invisible to the other team.