Transference

You touch a magic item and a non-magical item - creating a conduit between them. As the magical energy flows through you, it normalises itself between both items. From now on, both items are considered magical. And, when the duration of this spell has ended, you may specify a trigger from which the effect of the magic item will materialise from the previously non-magical one. This effect will only materialise if you or someone with an attunement to the previously non-magical item is within 50ft of that item.

Alternatively, at the discretion of the DM, no trigger can be specified and both items will now have the same magic properties. This is often preferred when the original magic item had a passive effect, or when both magic and non-magic items are similar. For example, if Stibbles the Alchemist casts transference while holding a non-magical sack and a Bag of Holding, he doesn’t need to specify a trigger - because the items are naturally similar - creating, for all intensive purposes, another Bag of Holding.

However, if he were then to cast transference while holding a rock and an Alchemy Jug, he would need to specify a trigger. Since there is no natural way a rock would produce an Alchemy Jug’s effect. “Perhaps when the rock is shaken, it would ooze the specified liquid?” -Stibbles (to his DM).

Lastly, certain magic items have far more malleable magic stored within them than others. This means that, often, a wizard may struggle to create a conduit between them normalise their magic. This difficulty is represented by the arcana checks detailed in the Conduity Table below:

 This arcana check is made at the end of the spell's duration and if failed, this spell will fail. If you have profiency with Tinker's Tools, you can add your proficiency bonus to this arcana check, in addition to proficiency in arcana.