This card is also useful against "Lightsworn" decks, activate it just before face-up cards mill during the end phase. It can also be combined with "Light of Destruction" to cause even more devastation.
Chain it to "Urgent Tuning", or activate whenever your opponent Synchro Summons, so the monsters used for the Synchro Summon won't reach the Graveyard and can't be used to Synchro Summon again. Remember, however, that you must predict when your opponent would Summon, as Synchro Summoning does not start a chain.
Chain it to "That Grass Looks Greener" for devastating results for the opponent: they will only mill Spells and Traps to the Graveyard.