Once You Have The Rainbow Pass,head for Seven Island. Go down until you see two Pokemon Rangers standing next to each other.(They can be found in the "Canyon Entrance".) If you have previously battled these trainers, you will need a VS Seeker. Use it while you are near them and battle with them. Make sure your fire-type knows Flame Wheel, Flamethrower, Fire Blast, Blast Burn, Fire Punch, ect. NOTE:ember is not one of the recommended moves, only moves acc at least 75 and Power at least 50. The Girl uses 2 Vileplume, the boy uses 2 Victreebel. Training with them is perfect for any Fire- Type!