diff --git a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
index 8e22ea5b4f..6d430e9415 100644
--- a/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
+++ b/OpenRA.Mods.Common/OpenRA.Mods.Common.csproj
@@ -121,6 +121,7 @@
+
diff --git a/OpenRA.Mods.Common/Traits/Conditions/GrantConditionOnHealth.cs b/OpenRA.Mods.Common/Traits/Conditions/GrantConditionOnHealth.cs
new file mode 100644
index 0000000000..2de9ad2afb
--- /dev/null
+++ b/OpenRA.Mods.Common/Traits/Conditions/GrantConditionOnHealth.cs
@@ -0,0 +1,100 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+ [Desc("Applies a condition to the actor at when its health is between 2 specific values.")]
+ public class GrantConditionOnHealthInfo : ITraitInfo, IRulesetLoaded, Requires
+ {
+ [FieldLoader.Require]
+ [GrantedConditionReference]
+ [Desc("Condition to grant.")]
+ public readonly string Condition = null;
+
+ [Desc("Play a random sound from this list when enabled.")]
+ public readonly string[] EnabledSounds = { };
+
+ [Desc("Play a random sound from this list when disabled.")]
+ public readonly string[] DisabledSounds = { };
+
+ [Desc("Minimum level of health at which to grant the condition.")]
+ public readonly int MinHP = 0;
+
+ [Desc("Maximum level of health at which to grant the condition.",
+ "Non-positive values will make it use Health.HP.")]
+ public readonly int MaxHP = 0;
+
+ [Desc("Is the condition irrevokable once it has been granted?")]
+ public readonly bool GrantPermanently = false;
+
+ public object Create(ActorInitializer init) { return new GrantConditionOnHealth(init.Self, this); }
+
+ public void RulesetLoaded(Ruleset rules, ActorInfo ai)
+ {
+ var health = ai.TraitInfo();
+ if (health.MaxHP < MinHP)
+ throw new YamlException("Minimum HP ({0}) for GrantConditionOnHealth can't be more than actor's Maximum HP ({1})".F(MinHP, health.MaxHP));
+ }
+ }
+
+ public class GrantConditionOnHealth : INotifyCreated, INotifyDamage
+ {
+ readonly GrantConditionOnHealthInfo info;
+ readonly IHealth health;
+ readonly int maxHP;
+
+ ConditionManager conditionManager;
+ int conditionToken = ConditionManager.InvalidConditionToken;
+
+ public GrantConditionOnHealth(Actor self, GrantConditionOnHealthInfo info)
+ {
+ this.info = info;
+ health = self.Trait();
+ maxHP = info.MaxHP > 0 ? info.MaxHP : health.MaxHP;
+ }
+
+ void INotifyCreated.Created(Actor self)
+ {
+ conditionManager = self.Trait();
+ GrantConditionOnValidHealth(self, health.HP);
+ }
+
+ void GrantConditionOnValidHealth(Actor self, int hp)
+ {
+ if (info.MinHP > hp || maxHP < hp || conditionToken != ConditionManager.InvalidConditionToken)
+ return;
+
+ conditionToken = conditionManager.GrantCondition(self, info.Condition);
+
+ var sound = info.EnabledSounds.RandomOrDefault(Game.CosmeticRandom);
+ Game.Sound.Play(SoundType.World, sound, self.CenterPosition);
+ }
+
+ void INotifyDamage.Damaged(Actor self, AttackInfo e)
+ {
+ var granted = conditionToken != ConditionManager.InvalidConditionToken;
+ if (granted && info.GrantPermanently)
+ return;
+
+ if (!granted)
+ GrantConditionOnValidHealth(self, health.HP);
+ else if (granted && (info.MinHP > health.HP || maxHP < health.HP))
+ {
+ conditionToken = conditionManager.RevokeCondition(self, conditionToken);
+
+ var sound = info.DisabledSounds.RandomOrDefault(Game.CosmeticRandom);
+ Game.Sound.Play(SoundType.World, sound, self.CenterPosition);
+ }
+ }
+ }
+}