After they met with Saburamen, Sushiko, Briscoe, the Duel Dinosaur Club and the Battle Bug Club, Luke quickly started training his fellow club members, allowing Romin to take a break in an attempt to hone her periods of rage, though Yuga eventually disappeared
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In Diamond/Pearl/Platinum , talk to Professor Rowans assistant after seeing 35 Pokmon
Viz Media text?: (The English manga by Viz Media sometimes uses text which is inconsistent with the Japanese text or how the card worked.): If you controlled 2 or more monsters at the start of your opponent's Battle Phase, and all of them were destroyed by battle and sent to the Graveyard, you can Special Summon this card from your hand during that Battle Phase
Randy discussed it in a recent column but the short answer is Priest of Titania was simply too good in an environment that stressed tribal decks