Melee Setup
These are the suggested equipment that you may use to kill Mithril dragons.
First, the helmet is a slayer helmet. Then you may also bring with you an amulet of torture, a peaceful blessing, a fire cape, a dragon defender, Karil’s leather top 100, Karil’s leather skirt 100, a zamorakian hasta, barrows gloves, dragon boots, and a berserker ring.
If you do not have these items, here are some alternatives that you may employ.
You may use any barrows helmet instead, such as the Dharok’s helm. This gives you a prayer bonus and range and defense bonus as well. You may also use Torag’s helm, or a serpentine helm, or maybe a Helm of neitiznot. You may use an amulet of fury or an amulet of glory instead of the amulet of torture. You should use items that maximize your range and your stab bonus. You should also maximize your magic defense bonus.
Inventory Setup
When it comes to the inventory, what you should bring are the following: you need a dragon dagger. You will use this for a special attack. You also need some prayer potions, an extended super antifire potion, and a super combat potion. You also need 12 to 14 sharks. You should also bring a rune pouch with fire runes and nature runes. Also, bring some teleports to the house and a games necklace.
Set your combat option to lunge. Have your quick prayer set to protect from melee, piety, and preserve.
Mithril Dragon Location
Use your games necklace and teleport to the Barbarian outpost. When you are there, go south. There you will see a bridge with a whirlpool.
Go south and stand on the bridge before you jump into the whirlpool. Drink a dose of the extended super antifire potion and the super combat potion. Turn on protect from magic. Go down. Go to the southeast part. You will see the stairs there and climb the stairs.
You need to turn on your protection prayers at this point-piety, protect from melee and also preserve. There you will see the mithril dragon.
How To Kill The Mithril Dragon
You may want to use your dragon dagger special attack as you kill the mithril dragon. Watch your health and your prayer.
Make sure that you watch your extended super antifire too in case that you get hit by the fire breath of the dragon.