Continuous trap Card
Activate this card by targeting 1 face-up monster on the field. It gains 800 ATK. If it would be destroyed by battle or card effect, you candestroy this card instead. When that monster leaves the field, destroy this card. You can banish this card from your Graveyard, then target 1 "Phantom Knights" monster in your Graveyard; Special Summon it, but banish it when it leaves the field. You can only use this effect of "Phantom-Sword" once per turn.