Sun Flute

From Pixelmon Generations

Sun Flute

A Sun Flute is one of two types of flutes that can be used to summon a wormhole to enter the Ultra Dimension. When the time is day and a Celestial Altar is orange, the altar can be clicked on with the flute to summon a wormhole. For a wormhole to successfully spawn with a Sun Flute, a Solgaleo or Necrozma is required to power the altar. The Sun Flute cannot be crafted, but can be dropped from legendary and Ultimate Boss Pokémon.