You can add an emc stage to the item. In this way, the item can only be put into the Transmutation Table after the player reaches this stage to obtain the transmutation knowledge, otherwise, the player can only obtain emc.
The same is true for Energy Condensers, Players cannot set items of energy condensers without reaching stage.
If you install CraftTweaker, crt can get or modify player's EMC and knowledge in Transmutation Table.
