Sanctity
Monastery - CastleEvolution
Sanctity
Castle
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"Monastery Units +15 HP."
Coach's Tip
Sanctity gives Monastery Units +15 HP, making them harder to snipe. Essential for Monk rush strategies.
Strategic Analysis
Strategic Identity
Sanctity gives Monastery Units +15 HP, making them harder to snipe. Essential for Monk rush strategies.
When to Research
High Priority
Research Sanctity as soon as you have the resources and are using monastery units.
Combat Impact
Monastery Units +15 HP.
Civilization Access
* 45 civilizations have access to this technology.
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Other Technologies to Explore
AoE Coach analysis
Context & meta
Sanctity is a Castle Age technology researched at the Monastery. It costs 175 gold and takes 60 seconds. Monastery Units gain +15 HP. The effect gives every affected religious unit more room to survive a failed approach, a defensive arrow volley, or the first seconds of a conversion attempt. Sanctity is not a damage upgrade and does not make a small Monk group automatically strong; its value appears when several Monastery Units are active long enough to use the extra health. The research is a gold investment in staying power and in the number of conversion attempts your group can preserve.
History & balance
Sanctity is the durability step in the Monastery path. Its design is easy to read: a religious unit is valuable because it must approach, channel a conversion, retreat, and try again, so additional HP protects the whole sequence rather than one instant of damage. The bonus also gives Monks a clearer role on contested ground without turning them into front-line soldiers. Because the effect is flat HP, it scales with the number of Monastery Units that are actually exposed. The technology therefore rewards a committed Monk plan and stays modest when the Monastery is only a support building.
In pro play
Research Sanctity when four to six Monastery Units are already planned for the next conversion cycle, especially if they must cross open ground or work near enemy cavalry. Reserve 175 gold and allow 60 seconds before the decisive fight; queue the technology while a second Monastery or a protected rally point keeps the plan alive. The extra +15 HP matters most when several Monks survive the first volley and can attempt another conversion. Do not delay the first defensive Monk group for Sanctity if the opponent is already attacking. Use it as the follow-up that turns a surviving group into a durable presence, not as permission to walk into focus fire.
How to counter it
No unit counters Sanctity itself. The classic timing error is paying 175 gold and 60 seconds before a Monk group exists, or finishing the research after the fight that needed the extra HP. The opportunity cost is delayed Monks, relic control, or another Monastery technology. A practical threshold is four to six affected Monastery Units that will survive at least one engagement; below that, the flat health gain rarely compensates for the lost tempo. Pressure the Monastery, force a fight before completion, and focus the Monks that still lack the upgrade. If you keep misreading this Monk timing, AoE Coach reads your matchup and gives you the composition and timing.