"Once Stood Against the Tide of Dark Waters Like Bedrock..."

Combat Action: When your active character is Black Serpent Knight: Rockbreaker Ax, equip this card.\nWhen this card is played or the Action Phase begins: Black Serpent Knight: Rockbreaker AxPerform Geo Application.\n(You must have Black Serpent Knight: Rockbreaker Ax in your deck to add this card to your deck.)