Before activating this card, discard a "Thunder Dragon" to add 2 of the necessary LIGHT monsters to your hand, as well as offset the loss of card count.
Discarding "Ojamagic" in some way achieves a similar effect.
This card can be useful in a "Fabled" Deck. If you add three copies of "Fabled Grimro" to your hand, you can discard them to fetch any three other Fabled monsters you may need.
This card also works well with "Daybreaker". Add three of it to your hand to potentially swarm in one turn.
Use this card in a "Cipher" Deck to return any 3 LIGHT monsters to your Deck, then add 3 copies of "Cipher Wing" from your Deck to your hand. Normal Summon the first and Special Summon the other two, then use the first's effect to make the other two Level 8 so you can Xyz Summon "Galaxy-Eyes Cipher Dragon".
Use this card to search for 3 copies of "Ojama Red" and then Normal Summon one to Special Summon the other two from your hand with its effect. If you already have "Ojama Red" in hand, search for another of "Ojama" monster to be Special Summoned by the effect of "Ojama Red".