Destroyers

Battleships, Cruisers, and Destroyers power and
toughness are equal to the number of Sailors and
Commanders attached to it.
When Battleships, Cruisers and Destroyers are
destroyed, all Sailors and Commanders attached
are destroyed unless you pay {u} for each Sailor
and {2}{u} for each Commander.
{t} Destroy target attacking creature with flying.
{t} Destroy target attack creature without flying.
No Admirals can be attached to Destroyers.