The Vanguard are a trio of Xeric's former commanders.
The three Vanguards originally spawn underground. When a player gets near one of the holes, all three will burst from the ground.
Each Vanguard uses one side of the combat triangle: Melee, Magic and Ranged. The melee Vanguard has tentacles flailing out, the magic Vanguard has no tentacles flailing out, while the ranged Vanguard is carrying rocks. After a short period of battling, the Vanguards will return to the shells and move around the arena; during this time, they are immune to attacks.
To harm the Vanguards, damage must be spread equally to all three Vanguards. It is unknown how much of a difference there must be between their Hitpoints, but if one Vanguard's health is significantly lower then the others, that Vanguard will heal to full health when they return to their shells, prolonging the fight. If the Vanguards are at or near the same health percentage, they will not heal themselves.
The Vanguard seem to have very high defence, so using Verac's armour set may be useful in killing them quickly.
Each Vanguard is weak to a specific attack combat type.
The range Vanguard is weak to Melee attacks.
The melee Vanguard is weak to Magic attacks.
The mage Vanguard is weak to Range attacks.
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