This card can be used in Decks like "Iron Chain" cards and "Empty Jar" to both protect your monsters from attacks and mill your opponent's Deck even more.
Against Decks that are extremely reliant on Xyz Summoning, this card can be devastating. If they attacked with a particularly powerful Monster such as "True King of All Calamities", their efforts will have been a serious waste of potential.
In a "Lockdown" Deck, you can lure your opponent to Xyz Summon a monster by using Level-related cards like "Gravity Bind", "Level Limit - Area B", etc. in order to use this card.
Combo this card with "Vampire Kingdom" to destroy 1 card on the field during each of your opponent's End Phases, assuming you have "Vampire" monsters to send.