There isn't a way to make an auto-added item conditional, so I think this would probably normally be implemented by creating three separate versions of the original thing that each add a different one of the options, and then the user has to choose between them.
For example,
Initiate's Edge (Elixir) that auto-adds just the Elixir of renewal
Initiate's Edge (Tattoo) that auto-adds just the Tattoo of the open road
and Initiate's Edge (Wand) that auto-adds just the Restorative Wand
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