KMS U-557

Submerge (This creature can't be blocked except by
creatures with submerge.)

Whenever KMS U-557 deals combat damage to a
player, that player discards a random card. If a
creature card is discarded this way, you lose 2 life.

“An allied ship mistook me for a Royal Navy and
collided with me... I had a few accidents before that
too, so maybe I'm just cursed with bad luck...”