The Arcane Gunpowder is a rankless active item and is one of four components of the Bullet That Can Kill The Past.
Players cannot use the Arcane Gunpowder, nor does it have any active use cases. It is merely a component item required to build the Bullet That Can Kill The Past.
The Arcane Gunpowder is a good item from a storyline perspective if nothing else. However, it does not give the player any stat bonus or special abilities.
There are no active or known Synergies for the Arcane Gunpowder in Enter the Gungeon. However, it is one of four components the player needs to collect to create a special type of ammo in Enter the Gungeon.
Players cannot use the Arcane Gunpowder in Enter the Gungeon. Players can only hold on to the item and give it to the Blacksmith on the Gungeon’s fifth floor.
Players will need to give the Blacksmith three other items so the NPC can create the Bullet That Can Kill The Past.
After subsequent gungeon runs, the player might find an inventory full of random items and weapons in Enter the Gungeon – the Arcane Gunpowder included.
However, it is worth noting that Arcane Gunpowder is a vital component in creating the Bullet That Can Kill The Past. And while players might find the item useless from a gameplay perspective, it is crucial for progressing the storyline in Enter the Gungeon.