Goblin Warlock

The Goblin Summoner is an mini-boss that can spawn when a Goblin Invasion occurs during Hardmode. It summons Shadowflame Apparitions to attack the player. It has a chance to drop weapons which are themed after Shadowflame, all of which accordingly inflict the Shadowflame Debuff.

Combat

 * It can summon Shadowflame Apparitions, although it seems to need to be close to the player to do this. Otherwise, it will fire Chaos Balls at the player.
 * It will try to close in on the player by jumping and dashing towards the player, also dealing contact damage.
 * It can jump/fly quite high into the air (almost as high as a player with wings), but can be avoided by standing on a somewhat high platform and attacking it with ranged weapons.
 * Knockback can stop the Goblin Summoner from flying to the player, which can be used with the aforementioned tactic to constantly attack the Summoner without it being able to get close.

History
Invocateur Gobelin