about Opo-opo Necklace in BF. While asleep, if you wear Opo-opo Necklace, Your TP increase 2.5TP / 3second. Everyone use Opo-opo Necklace in BF. 1. After entry BattleField, plz wear Opo-opo Necklace. 2. Plz drink Sleeping Potion, you fall sleep during 30seconds. 3. While asleep, your TP increase, after 30second, TP become 25%. 4. Plz continue to drink Sleeping Potion until TP is 100% or 300%. 5. If you want TP=300%, need 12 Sleeping Potion(1 stack) and 6min. 6. After wakeup, plz change neckles and start battle with TP100%(or300%). 7. Attention! if someone sleep for TP, don't cure.