There are three different rune ethereal outfits to collect - the law ethereal, the death ethereal, and the blood ethereal. Each comprises five tradeable pieces, and grants you the following runecrafting-related benefits:
A chance to double your runes when siphoning in the Runespan - 1% per outfit piece, so up to 5% with all five outfit pieces.
25% chance for your rune pouch to not degrade while runecrafting in a full outfit.
Store up to 6 piece of rune essence in a full outfit
All the benefits of the master runecrafter robes and wicked robes, if you already own them.
Combine the same pieces from all three outfits to create the infinity ethereal outfit, which gives you all of the above, plus:
The chance to double your runes in the Runespan is increased to a maximum of 7% with the full outfit.
The chance for your rune pouch to not degrade is increased to 50% with the full outfit.
The maximum amount of rune essence that can be stored in the full outfit increases to 12.
Five daily teleports to the yellow wizard within the Runespan (and back!)
For the first three days of the promotion you will be able to win elements from a different outfit each day. Return to Treasure Hunter on the 4th and 5th days to win any of the three outfits and complete your sets:
01:00 16th Oct - 00:59 17th Oct: law ethereal
01:00 17th Oct - 00:59 18th Oct: blood ethereal
01:00 18th Oct - 00:59 19th Oct: death ethereal
01:00 19th Oct - 00:59 21st Oct: all three outfits
All times and dates listed above are British Summer Time (BST).
Everyone gets at least one Key per day, and RuneScape members get two! You can get your hands on even more through gameplay – just visit the wiki[help] to find out how, and learn a little more about Treasure Hunter at the same time.
You can buy more Keys via the website too, redeem Bonds in-game, or just select ‘Buy Keys’ when you’re in the Treasure Hunter.