Using "Dice Re-Roll" with this card increases your chances of matching the Level of the opponent's monster.
The most common Level is 4, which can make this card go hand in hand with "Cyber Jar" or "Morphing Jar 2"(Traditional Format).
"Stygian Dirge" will reduce your opponent's monster's Levels by one each. This way your opponent will have to worry about their Level 7 Special Summoned monsters as well. Multiple copies of that card will increase the amount of monsters that this card can affect.