Pay 800 Life Points. Pick up 4 cards from the top of your Deck and Special Summon to your side of the field all Level 3 or lower Normal Monsters among the picked-up cards. Return all the other picked-up cards to your Deck and the Deck is then shuffled.
The Ojama Archtype is full of low leveled Normal monsters, and having them on the field will help you activate Ojama Delta Hurricane!!. Summoning them out of your deck also helps you get materials to fusion summon.