At the end of your turn, if Armored Drakkar has no Armor, gain 2 Armor.
Exposed: Boost self by 1.
Bloodthirst 2: Boost self by 2 instead.
Armor: Protects the unit from damage. This value doesn't count towards your score and/or the unit's power.
Exposed: Trigger this ability whenever the unit loses its Armor.
You can't take it upriver… but you can certainly take it to chase the imperial fleet.