The Omni-talisman is a members-only Runecrafting item that grants access to all Runecrafting altars which require a talisman for entry. It can be obtained in the Runecrafting Guild. The guild requires 50 Runecrafting to enter.
To obtain the talisman, players have to talk to Wizard Elriss in the Runecrafting Guild and show her one of every regular talisman or tiara available on RuneScape. There are twelve in all:
Note: Enchanted water tiara does NOT work, you must use a regular talisman or tiara. Elemental talisman will not work, and neither will a Wicked hood, even one with all 12 talismans already fed to it. Doing this, players gain 13,605 Runecrafting experience—at level 50 this can give an experience boost all the way to level 51. In addition to that, players retain the original talismans as Elriss does not take them. Attempt to buy tiaras first because they can cost significantly less, in the tens of GP. Assuming that you purchase all talismans from the Grand Exchange, the Omni-talisman will cost you approximately 12,481 coins, although they can all be sold back after obtaining the Omni-talisman. Upon showing all 12, the wizard will automatically give you the omni talisman. If you did not automatically receive it, then you are missing at least one from the list.
The omni-talisman can be combined with a tiara, or a Runecrafting staff by talking to Wizard Korvak in the Guild with the necessary items in the inventory. If the Omni-talisman is lost for any reason (including combining it with a tiara, staff or Wicked hood), a new one may be obtained by speaking to Elriss. The talismans don't need to be shown to her again to get a replacement.
(NOTE: You can only receive xp once, so there is no point in destroying the Omni-talisman and showing her all the talismans again. Doing so Wizard Elriss will say she has already seen this talisman.)
The locations of all the Runecrafting altars will be shown if the Omni-talisman is used on the Rune Altar Map, which is located in the middle of the Runecrafting Guild.
"Omni" refers to the ablative form of the Latin adjective Omnis. It can be literally translated to "with every (thing)". This makes sense, because the Omni-talisman allows access to every available altar and holds the properties of every talisman.
Unlike the Omni-tiara, the Omni-talisman cannot grant access to the free members' altars, such as air, mind, water, earth, fire, and body, while in a free players' world.
When/ if soul runecrafting becomes available players may have to show a Soul talisman to Elriss before they can make use of the omni-talisman again.
This is the only Runecrafting talisman that currently doesn't have the "locate" option.
Upon examining the Omni-Talisman the player will receive the message "Many mysterious powers emanate from the talisman", instead of "A mysterious power emanates from the talisman..."