"Swords of Revealing Light" has two extremely potent effects. The major impact is that it stays on the field for three turns during your opponent's turn. Your opponent cannot strike as long as "Swords of Revealing Light" remain on the field. This effect can only be activated once per turn. The minor impact is that "Swords of Revealing Light" also reveals invisible characters, which can be very useful in certain situations. It does not reveal monsters, so you could use this effect to attack into an enemy position without being attacked yourself. However, since all visible cards are revealed when "Swords of Revealing Light" enters the field, you should really consider whether this extra attack is worth the risk of exposing your own team before using it. Since you can activate only one "Swords of Revealing Light" per turn, this card offers quite a bit of flexibility. You can use it as a defensive tool or an offensive one. Since it doesn't target yourself or your opponents, this card is excellent at attacking enemies that others on your team would otherwise have trouble reaching. For example, if you have a monster on the edge of the battle line that can't reach an enemy due to range limitations, you could use "Swords of Revealing Light" to move it into striking distance for free!