Duplicate

The Duplicate is a post-Plantera Hardmode boss that can be summoned in the Corruption/Crimson with a Cloning Cell, an item that can be crafted with 25 Adamantite/Titanium Bars, 30 Gel and 10 Souls Of Night.

Stats

 * 75,000 Health
 * 50 Defense In First Form
 * 75 Defense In Second Form
 * 25 Defense In Third Form

First Phase
When the Duplicate has just been spawned, it appears as a ball of darkness that quickly switches to an inverted version of the player. It attacks with a large black sword and teleports around, overall the Duplicate mostly focuses on evasion in this form.

Second Phase
After the Duplicate goes down to 50,000 health, it switches it's defense to 75 and gains a set of black armour. In this form it will still fight with it's sword but more focuses on being defensive and knocking the player back with a new wave attack.

Third Phase
Once the Duplicate reaches 25,000 health, it lowers it's defense to 25 and becomes a lot more aggressively it's attacks, with both strikes becoming more frequent and doing more damage, along with the fact that the Duplicate gains a dangerous new attack where it blasts player's with a purple machine gun.

Drops

 * Suspicious Mirror (100%)
 * TBA