Polarities Mod/Sun Pixie

The Sun Pixie is an early Hardmode boss summoned in the Hallow, intended to be fought after at least one of the mechanical bosses.

While it is alive, its exclusive Winged Plasma will play; if the Polarities Mod Music sidemod is not enabled, the vanilla track Boss 5 will play instead.

Spawning
Sun Pixie does not spawn on its own, and requires the player to summon it by using a. It be fought at any time of day, but can only be summoned in the Hallow.

Behavior
Sun Pixie alternates at random between various attacks, never repeating the same attack twice in a row. Below 65% health, these attacks are buffed.
 * Trail Arena - Sun Pixie circles the player twice at an extremely high speed, leaving a trail of solar orbs that encircle the player. If the player leaves this arena, the solar orbs will fly outwards at high speed. Below 65% health, the boss uses this attack more frequently, and the arena created is slightly smaller.
 * Laser Rings - Sun Pixie flies to a random position above the player four times, stopping and releasing a ring of 8 accelerating lasers at each point. Below 65% health, the ring contains 12 lasers instead.
 * Swoop - Sun Pixie flies above the player, before swooping at them and flying back up into the air twice. Below 65% health, it swoops more aggressively, and does so three times instead of twice.
 * Laser Rain - Sun Pixie flies above and to the side of the player, before rapidly flying to the side, shooting accelerating lasers directly downwards. Below 65% health, the density of these projectiles is increased.
 * Solar Flares - Sun Pixie slowly flies towards the player three times, creating a set of telegraphs that are first diagonal, then orthogonal, then both, which expand into damaging solar flares after a short time. Below 65% health, the boss always creates both orthogonal and diagonal flares.
 * Deathray Sweep - Below 65% health, Sun Pixie will fly above the player, before creating a deathray that sweeps towards the player, covering a 90 degree area below the boss.

In Expert Mode, below 20% health, Sun Pixie will stop using all of its attacks except for the arena creation attack, replacing them with a few intense attacks. It also begins to use the arena creation attack as soon as the existing arena disappears.
 * Laser Storm - Sun Pixie flies above and to the side of the player, before rapidly flying back and forth above the player a total of three times, shooting accelerating lasers directly downwards.
 * Deathray Spam - The boss shoots short-lived rotating deathrays at random in all directions, with a small gap around the player.

Aftermath
Once the Sun Pixie has been defeated for the first time, the following will occur:
 * The will begin selling.

Tips

 * The telegraphs of the solar flare attack don't deal damage, meaning it's possible to adjust your direction during their downtime.
 * During the swoop attack, going downwards allows the boss to move much faster, so jumping over it is preferable to going under it.
 * The arena forms fairly slowly and follows the player while it's forming, allowing you to reposition it during the attack.
 * Honey, in addition to its regeneration bonuses, also cancels the On Fire! debuff applied by the boss's attacks.

Trivia

 * If the player is wearing Sunglasses, the Sun Pixie will also appear to don them, in a nod to the item's similar effect on the sun itself.