First of all , master Firemaking at a level of RuneScape gold 50 (the higher the level, the better) Any other skills aren't required but the experience gained from different activities carried out during minigame (those activities are linked to Herblore, Woodcutting, Fletching and construction abilities) scales positively with level of said skill, so it's a nice way to move up within a specific field of expertise.
Once you have your Firemaking high enough, gather at minimum an assortment of four layers of warm attire (ie. bunny costume, Santa hat Rainbow scarf, Fremennik gloves with fire cape, staves and tomes of fire) foods, replenishment potion, knife, hammer, axe and the tinderbox. When ready head to Wintertodt Camp (located within the northern areas of Arceuus) in Great Kourend and help pyromancers in containing Wintertodt by keeping the braziers lit and ensuring that none of those weak wizards are unable to escape due to getting owned by boss.
Look for them In Edgeville Dungeon and Taverley Dungeon. They are particularly vulnerable to Ranged weapons of Combat level 13. chaos druids provide easy target. Be careful even as chaos druids are frequently haunted by players who kill, so carry only combat-related items that are necessary and take a one-click-teleporter to your side in case of buy runescape 3 gold emergency. There aren't any requirements apart from membership.