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Filler Building Radiant 1 model.png
Filler Building Radiant 1 model.png
Filler Building Dire 2 model.png
Unknown Unit icon.pngUnknown Unit icon.png
Level 0
Health 1500
Health regeneration 0
Armor 20
Magic resistance 0%
Collision size 96
Vision range 00 (G)
Bounty 0 (+ 125)
Experience 0
Notes Abilities:
Backdoor Protection icon.png Backdoor Protection
Sanctuary icon.png Sanctuary

Main article: Buildings


Backdoor Protection
Pierces spell immunity.
Backdoor Protection icon.png
Passive / Aura
Structure takes reduced damage, and quickly regenerates any damage taken while no enemy creeps are nearby.
Search Radius: 900 / [ Info Needed ]
Heal per Second: 90
Damage Reduction: 25%
Protected Illusion Damage Reduction: 75%
Unprotected Illusion Attack Damage Reduction: 60%
Reactivation Delay: 15
Buff Backdoor Protection Active: Undispellable.


  • All buildings, except for tier 1 towers and the shrines outside of the base have this ability.
  • Tier 2 towers outside the base use different backdoor protection of one inside the base, whose search radius is 900.
    • That means the backdoor protections of tier 2 towers outside the base are all independent from each other and from the base backdoor protection.
    • However, the protection of buildings inside the base is bound together. If one of them loses backdoor protection, all of them do.
  • The unit detection is aura-based. If an enemy lane creep gets within 900 / [ Info Needed ] radius of the building, the protection is lost.
    • The aura's effect lingers for 0.5 seconds, so the total reactivation delay is effectively 15.5 seconds.
  • While protected, the building takes 25% less damage from any source, and 75% less damage from illusions.
    • This includes spell damage, not only attacks, including spells cast by illusions.
    • While unprotected, the building only takes 60% less damage from illusion attacks (excluding their spells).
  • If a backdoor-protected building is damaged by an enemy, it immediately starts healing back.
  • Heals 9 health in 0.1 second intervals, which translates to 90 health per second.
    • This means, it is possible to destroy protected buildings by dealing more than 90 damage per second (after reductions).
  • Only heals back damage dealt by enemy units. Damaged dealt by allies is not healed back.

Sanctuary icon.png
Passive / Aura
Generates an aura that provides increased health and mana regeneration to nearby allies when activated.
Activation Distance: 150
Aura Radius: 500
Base Health Regen: 90
Bonus Health Regen per Minute: 2
Base Mana Regen: 40
Bonus Mana Regen per Minute: 0.75
Duration: 5
Cooldown symbol.png 300
Buff Filler Heal Aura: Undispellable.
Buff Filler Heal: Undispellable.


  • Whenever this ability is off cooldown, the shrine emits particle effects and a looping sound. Its minimap icon also starts glowing.
  • While ready, pressing the ALT key highlights the aura's radius with a blue circle. This circle disappears when on cooldown after the aura expired.
  • A shrine can be activated by ordering the hero to follow it. A follow order is given by right-clicking, or by pressing the move hotkey and selecting the shrine as a target.
    • Once the hero is within the activation range, the shrine gets activated, if the follow command is still active.
    • Can only be activated by allied heroes and clones. No other unit can activate it.
    • Since a hero executing a move order is required to activate it, it cannot be activated while stunned, taunted, slept, cycloned and hidden.
  • Once activated, the shrine emits an aura which applies the restoring effects. The aura's buff lingers for 0.5 seconds.
  • The aura affects all allied units which are not wards or buildings. However, it does not affect invulnerable or hidden allies.
  • Multiple instances of the aura do not stack, so standing between two activated shrines in the base does not double the effect.
  • For each full minute mark, starting after the first creep wave spawn, the health and mana regeneration get stronger. There is no cap to this.
  • The auras do not update if they were activated just a few seconds before a full minute mark was reached. Their values are set upon cast.
  • Restores in the form of regeneration, so it restores 9 (+ 0.2 per minute) health and 4 (+ 0.075 per minute) mana in 0.1 second intervals.
  • Can heal and restore up to 495 (+ 11 per minute) health and 220 (+ 4.125 per minute) mana over its full duration (duration + buff linger time).
  • All shrines are on cooldown until the 5 minute mark of the game.