diff --git a/Spigot-API-Patches/0035-Add-PlayerUseUnknownEntityEvent.patch b/Spigot-API-Patches/0035-Add-PlayerUseUnknownEntityEvent.patch
new file mode 100644
index 0000000000..0d37625480
--- /dev/null
+++ b/Spigot-API-Patches/0035-Add-PlayerUseUnknownEntityEvent.patch
@@ -0,0 +1,57 @@
+From 248cfb570e0e1783f8342ab51c2eb7f8ac0de495 Mon Sep 17 00:00:00 2001
+From: Jedediah Smith <jedediah@silencegreys.com>
+Date: Sat, 2 Apr 2016 05:08:36 -0400
+Subject: [PATCH] Add PlayerUseUnknownEntityEvent
+
+
+diff --git a/src/main/java/com/destroystokyo/paper/event/player/PlayerUseUnknownEntityEvent.java b/src/main/java/com/destroystokyo/paper/event/player/PlayerUseUnknownEntityEvent.java
+new file mode 100644
+index 0000000..70eeaf5
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/event/player/PlayerUseUnknownEntityEvent.java
+@@ -0,0 +1,42 @@
++package com.destroystokyo.paper.event.player;
++
++import org.bukkit.entity.Player;
++import org.bukkit.event.HandlerList;
++import org.bukkit.event.player.PlayerEvent;
++import org.bukkit.inventory.EquipmentSlot;
++
++public class PlayerUseUnknownEntityEvent extends PlayerEvent {
++
++    private static final HandlerList handlers = new HandlerList();
++    private final int entityId;
++    private final boolean attack;
++    private final EquipmentSlot hand;
++
++    public PlayerUseUnknownEntityEvent(Player who, int entityId, boolean attack, EquipmentSlot hand) {
++        super(who);
++        this.entityId = entityId;
++        this.attack = attack;
++        this.hand = hand;
++    }
++
++    public int getEntityId() {
++        return this.entityId;
++    }
++
++    public boolean isAttack() {
++        return this.attack;
++    }
++
++    public EquipmentSlot getHand() {
++        return this.hand;
++    }
++
++    @Override
++    public HandlerList getHandlers() {
++        return handlers;
++    }
++
++    public static HandlerList getHandlerList() {
++        return handlers;
++    }
++}
+-- 
+2.7.4
+
diff --git a/Spigot-Server-Patches/0124-Add-PlayerUseUnknownEntityEvent.patch b/Spigot-Server-Patches/0124-Add-PlayerUseUnknownEntityEvent.patch
new file mode 100644
index 0000000000..f9e1f18444
--- /dev/null
+++ b/Spigot-Server-Patches/0124-Add-PlayerUseUnknownEntityEvent.patch
@@ -0,0 +1,43 @@
+From 702c81ef81451505a29dc4e69823911c21a965b9 Mon Sep 17 00:00:00 2001
+From: Jedediah Smith <jedediah@silencegreys.com>
+Date: Sat, 2 Apr 2016 05:09:16 -0400
+Subject: [PATCH] Add PlayerUseUnknownEntityEvent
+
+
+diff --git a/src/main/java/net/minecraft/server/PacketPlayInUseEntity.java b/src/main/java/net/minecraft/server/PacketPlayInUseEntity.java
+index 2b23a5d..6464a84 100644
+--- a/src/main/java/net/minecraft/server/PacketPlayInUseEntity.java
++++ b/src/main/java/net/minecraft/server/PacketPlayInUseEntity.java
+@@ -4,7 +4,7 @@ import java.io.IOException;
+ 
+ public class PacketPlayInUseEntity implements Packet<PacketListenerPlayIn> {
+ 
+-    private int a;
++    private int a; public int getEntityId() { return this.a; } // Paper - add accessor
+     private PacketPlayInUseEntity.EnumEntityUseAction action;
+     private Vec3D c;
+     private EnumHand d;
+diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
+index ff64891..b60b134 100644
+--- a/src/main/java/net/minecraft/server/PlayerConnection.java
++++ b/src/main/java/net/minecraft/server/PlayerConnection.java
+@@ -1615,6 +1615,16 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
+                 }
+             }
+         }
++        // Paper start - fire event
++        else {
++            this.server.getPluginManager().callEvent(new com.destroystokyo.paper.event.player.PlayerUseUnknownEntityEvent(
++                this.getPlayer(),
++                packetplayinuseentity.getEntityId(),
++                packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.ATTACK,
++                packetplayinuseentity.b() == EnumHand.MAIN_HAND ? EquipmentSlot.HAND : EquipmentSlot.OFF_HAND
++            ));
++        }
++        // Paper end
+ 
+     }
+ 
+-- 
+2.7.4
+
diff --git a/importmcdev.sh b/importmcdev.sh
index 9900c11dc0..c1d71fd05d 100755
--- a/importmcdev.sh
+++ b/importmcdev.sh
@@ -51,6 +51,7 @@ import EntitySquid
 import FileIOThread
 import ItemBlock
 import PacketPlayInResourcePackStatus
+import PacketPlayInUseEntity
 import PacketPlayOutPlayerListHeaderFooter
 import PacketPlayOutTitle
 import PacketPlayOutUpdateTime