You can substitute an ingredient with a potion when creating a potion. If the potion effect matches an effect of at least one other ingredient, it will be part of the potion. The amount of potions you can substitute depends on the level of Create Potion skill you are using.
You can substitute an ingredient with a magic spell effect when creating a potion. If the magic spell effect matches an effect of at least one other ingredient, it will be part of the potion. The amount of spells you can substitute depends on the level of Create Arcane Potion skill you are using.
This ability allows you to help improve your construct further. You can give it stat points or trait points from your character. You can use skills like Design Improvement, Runic Tech Combination, or Runic Tech Upgrade to improve your construct, and so much more.
With this ability you may assign a profession to your elemental construct, once it is awakened. This will allow the construct to grow following the path of that profession and learn skills and abilities from that profession.
One of the things you can create using the Runic Crafting skills is an elemental construct. This ability allows you to awaken it, having it as your familiar. All you must do is give it a portion of your Vitality, Soul, and Power. However much you give it is what the construct will have. The rest of the basic stats will come from the construct's blueprints and design.
You can use a potion as a defensive action.
You can equip a potion as your weapon and use it during your attack action. As long as you have more than one of that same potion it will keep replenishing in your hand. Once you run out however you would have to spend a support action to equip another potion.
You can use a potion as your magic action.
Immunity checks can be used against potions and not just status effects.
Make a medicine check with every potion you use. If you succeed at an impossible medicine check, the potion refills automatically.