The Fire Cape is a melee item in OSRS. Getting this coveted cape isn't easy, defeat the legendary boss Jad and as a reward, you'll get the OSRS Fire Cape. Before doing this quest, make sure to collect your OSRS GP to defeat oncoming enemies.
Arrive at Fight Caves
When you reach Karamja, Jad and waves of enemies will be waiting for you at Tz-Haar Fight Caves. You can arrive with a charged Amulet of Glory.
Once you get to this area, you can go left and find a volcano. There you'll find a rope going down, so follow it down to the depths of the volcano. Once you find the cave entrance, you can walk west until you come to the bank that serves as the entrance to the battle cave.
How to beat boss Jad
Before heading to Fight Caves, you should be well prepared. Make sure you have at least 70 ranges and at least 45 prayers and defense before attempting this quest. Since your ranged level is high, please bring at least two ranged potions with you. Also, I recommend that you take about 20 super recovery potions. Saradomin brews and even Purple Sweets can come in handy.
Use the best shield to suit your defense rating, carry the Amulet of Glory. Amulet of Ranging will further improve ranged skills. If you can, your range can also be increased by wearing ranged armor. Using the Blessed Dragon Skin will provide a prayer reward. Your weapon of choice should be the Rune Crossbow. This weapon can be very effective in combination with diamond or ruby bolts.
Prepare for the above, and you will have enough confidence to defeat Jad and get the reward. If you wish, you can dedicate it to TzHaar-Ket-Keh to gain access to hell. You can also hang it on the Cape Hanger in the achievement gallery in the player's home. If you want to sell capes then you can sell to TzHaar-Mej-Jal. This will give players the option to get the Jad pet or 8000 Tokkul.
It's worth mentioning that if you decide to sell the cape, you'll have to defeat Jad again to get another one. Luckily, you can buy OSRS Fire Cape quickly from rpgstash.com and you can even Buy OSRS GP to boost your combat power. RPGStash is a professional provider that will help you enjoy RuneScape better.