Required topEnemy in Thornbush Farm.

app/lib/LevelOptions.coffee

@@ -217,6 +217,7 @@ module.exports = LevelOptions =
     hidesCodeToolbar: true
     requiredGear: {feet: 'leather-boots', 'right-hand': 'crude-builders-hammer', 'programming-book': 'programmaticon-ii', eyes: 'crude-glasses'}
     restrictedGear: {feet: 'simple-boots', 'right-hand': 'simple-sword'}
+    requiredCode: ['topEnemy']
   'back-to-back':
     hidesCodeToolbar: true
     requiredGear: {feet: 'leather-boots', torso: 'leather-tunic', waist: 'leather-belt', 'programming-book': 'programmaticon-ii', eyes: 'crude-glasses', 'right-hand': 'simple-sword', 'left-hand': 'wooden-shield'}

app/views/play/level/tome/CastButtonView.coffee

@@ -148,6 +148,7 @@ module.exports = class CastButtonView extends CocoView
   onLeftRealTimeMultiplayerGame: (e) ->
     @inRealTimeMultiplayerSession = false
 
+  # https://mixpanel.com/report/227350/segmentation/#action:segment,arb_event:'Saw%20Victory',bool_op:or,chart_type:bar,from_date:-9,segfilter:!((filter:(operand:!('Ogre%20Encampment'),operator:%3D%3D),property:level,selected_property_type:string,type:string),(property:castButtonTextGroup,selected_property_type:number,type:number)),segment_type:number,to_date:0,type:unique,unit:day
   initButtonTextABTest: ->
     return if me.isAdmin()
     return unless $.i18n.lng() is 'en-US'

app/views/play/level/tome/SpellView.coffee

@@ -810,6 +810,7 @@ module.exports = class SpellView extends CocoView
   onDisableControls: (e) -> @toggleControls e, false
   onEnableControls: (e) -> @toggleControls e, @writable
   toggleControls: (e, enabled) ->
+    return if @destroyed
     return if e?.controls and not ('editor' in e.controls)
     return if enabled is @controlsEnabled
     @controlsEnabled = enabled and @writable