Blood Arcmage

Blood Arcmage
The Blood Arcmage is a late-hardmode boss battle and a member of the Blood Cult, but, unlike other members, the player has to summon this enemy.

Stats

 * HP: 1,000,000
 * Defense: 0
 * Damage:
 * Melee: 500
 * Blood Plague: 150 (Inflicts the "Blood Plague" Debuff)
 * Blood Rain: 200
 * Blood Drain: 100

Summoning
In order to summon this enemy, the player must break the Altar of Sacrifice, found at the entrance of the Hellish Dungeon. Upon being broken, the twice as many regular Blood Cult members will spawn, and the Blood Arcmage will rise up out of the shattered altar. Then the fight will begin.

Fight
During the fight, most of the HP stolen by Blood Cult members will heal the Blood Arcmage, making it advisable to prioritize killing the lesser cult members first.

Phase 1:
During phase 1, the boss has the ability to attack the player by rushing it and casting a spell. The only spell it will cast in this phase is the Blood Rain spell, which will cause large red droplets, capable of dealing damage to the player, to fall from the ceiling.

Phase 2:
Once the boss is at half health, it enters phase 2. During phase 2, the arcmage's skin will go from sheet white to jet black, and it gains 2 new spells: Blood Plague and Blood Drain. The Blood Plague spell entails the arcmage releasing a large cloud of red, swarming, insect-like creatures that will chase the player and inflict the "Blood Plague" debuff. The Blood Drain spell entails the arcmage emitting an aura that, if the player steps in, will rapidly drain the player's HP to heal the arcmage itself.

Phase 3 (Expert Mode Only):
If the player is in expert mode, the boss does not die at phase 2. After it has been "killed," the body will fall, but the head will float up, revive any and all dead Blood Cult members, and heal itself to 300 HP. It will now move more erratically, revive dead cult members regularly, and attack more frequently.

Defeat
Once the player has defeated the Blood Arcmage, a message will appear in chat saying, "Hell has come to Earth!" The Hell on Earth events have now started.

Drops

 * 1% Arcmage Blood Orb
 * Blood Arcmage Treasure Bag (Expert Mode Only)