The Blessed Apple is a Hardmodemount summoning item. When used, it summons a rideable Unicorn Mount that gives the player an extra jump as well as the ability to sprint and charge through enemies, damaging them in the process. It can be dropped by all Hallow-related enemies, with a 0.5% / 0.67% (1/200 / 1/150) chance to drop.
Once a high speed is reached, the Unicorn emits a sparkle effect, and from that point on, the Unicorn will be able to damage enemies on contact. The invulnerability is granted for 1/10 second when the player and the Unicorn dash through an enemy, much like the brief invulnerability after taking damage. Dashing through enemies while riding this mount will deal 80 base damage to them, excluding defense. This damage benefits from effects that boost summon damage.
Its speed reaches 61mph, according to the Stopwatch. At top speed, it is nearly twice as fast as a player wearing Lightning Boots. However, the Unicorn Mount can reach up to 80mph when falling down after having reached max speed.
A Unicorn does not benefit from the effect of Asphalt Blocks, making players with Lightning Boots travel slightly faster on these blocks (64mph with boots and 61mph on a Unicorn). The Unicorn also does not benefit from Swiftness Potions.
While riding the Unicorn, the player will be damaged by one-block-deep lava, but not given benefits or slowed down by one-block-deep honey.
While the player is mounted on the Unicorn, they will only take 20% fall damage.
The Unicorn makes the player five tiles in height, unlike most other mounts, which only raise the height to four tiles.
All items providing an extra jump, like the Cloud in a Bottle, will stack with the mount, allowing a triple jump. If a Bundle of Balloons is equipped, it is possible to jump 5 times before hitting the ground.
Further adding the Fart in a Jar or upgrades and Tsunami in a Bottle or upgrades allows the player to do a septuple jump.
When using the double jump, the player has a green and yellow sparkling effect in the mount's trail. The color of the particles created by double jumping, as well as charging, are affected by dyes.
Even though the Blessed Apple's drop chance is quite low, considering it drops from all Hallow enemies, the mount is quite common, and is usually the first Hardmode mount obtained.
If the player has Water Walking Boots, Obsidian Water Walking Boots, or Lava Waders equipped, then the Unicorn Mount will also walk on water.