Naoki Saito began illustrating Duel Masters cards for Wizards of the Coast during production of the Base Set, for which Nakoi illustrated Holy Awe, "Iocant, the Oracle," Revolver Fish, Ruby Grass, Saucer-Head Shark, and Super Explosive Volcanodon.
You can look up Holy Awe, Iocant, the Oracle, Revolver Fish, Ruby Grass, Saucer-Head Shark, and Super Explosive Volcanodon, along with every other Duel Masters card printed in English, in the Duel Masters card database, here: http://www.wizards.com/duelmasters/dmdb.asp Note that the database does not show promotional cards.