Arcanas

The Arcanas, sometimes known as the "Arcana" in plural, are the four ancient and holy relics from the Dumary Island and their legend speaks of their power to seal the unholy demon king Argosax and also to bring him back to the Earth. They played a central role in Devil May Cry 2.

History
The Arcanas were originally created by the Vie de Marli clan, an ancient order of demon slayers who were the protectors of Dumary Island to combat the King of Darkness, Argosax himself. During the time when the demons overrun the Earth and Argosax was worshipped by a secret tribal cult among the island's inhabitants, the Vie de Marli with the help of the demon warrior Sparda, used the power of the Arcanas, and together they defeated and seal Argosax away. The Arcanas except two were then scattered across different places on Earth.

Centuries later, Arius tries to obtain the Arcanas in order to release Argosax, take his power, and become a god. He sends agents of his company Uroboros as well as summoned demons to hunt them down and recover them. The Arcana that are once used to seal Argosax, will unite them at the solar eclipse, thus a gate to the Demon World will open. Though Dante manages to interfere with Arius' ritual by replacing the Medaglia with his own double-sided coin, the doorway is still partially opened, and Arius absorbs part of Argosax's power. Because the portal is unstable, whoever enters may not be able to return, so Lucia demands to go, claiming she is expendable. However, Dante puts the decision to his coin, and after winning the coin toss, goes in, just like his father once did. Dante won against Argosax on the other side while Lucia defeated the newly resurrected Arius. Lucia continiously fliped that same false Medaglia coin as she waits for Dante until he finally returned.
 * The Arcana Medaglia (Italian: "Secret Coin") is a silver coin with a cross and a winged Gemini symbol found by Lucia in a museum during the prologue. After finding it, she is attacked by several Puias and is rescued by Dante.
 * The Arcana Spada (Italian: "Secret Sword") is a criss cross dagger guarded by Tartarussian in the clock tower on the other side of the village on Dumary Island, and is found by Lucia after she defeats him.
 * The Arcana Calice (Italian: "Secret Cup") is an aqua-green chalice guarded by Plutonian in the underground ruins of a forgotten temple, and is found by Lucia after she defeats him.
 * The Arcana Bastone (Italian: "Secret Staff") is a aqua-green sceptre with a white falcon and two brown belongs to Matier, and is given to Lucia after she obtains the Spada.

Trivia

 * The Coin, the Sword, the Cup, and the Staff are the European version of the suits of Tarot playing cards, the precursors to modern playing cards. The individual cards were known as "Arcana".
 * A symbol of winged twins on the back of the Arcana Medaglia is similar to the zodiac sign Gemini.