You can only activate 1 "Onomatopaira" per turn. Send 1 card from your hand to the Graveyard; add up to 2 of these monsters from your Deck to your hand (you cannot add 2 from the same category).
?1 "Zubaba" monster
?1 "Gagaga" monster
?1 "Gogogo" monster
?1 "Dododo" monster