If a "Phantom Knights" card(s) and/or a "Phantom-" Spell/Trap Card(s), is sent to your Graveyard: This card gains 500 ATK. You can banish this card from your Graveyard; add 1 "Phantom Knights" card or 1 "Phantom-" Spell/Trap Card from your Graveyard to your hand during the End Phase of this turn. You can only use each effect of "The Phantom Knights of Cracked Helm" once per turn.