Fix crash in Owl of Wisdom

load_triggers() in Owl of Wisdom uses _stats.periodic_event_period
\ which is initialized in get_tier_stats()->init_stats_and_specials()
So need a specific order

Scenes/Towers/Tower.gd

@@ -102,12 +102,6 @@ func _ready():
 	var outline_thickness: float = 6.0
 	_set_sprite_node(_sprite, outline_thickness)
 
-	var triggers_buff_type: BuffType = BuffType.new("", 0, 0, true, self)
-	triggers_buff_type.set_hidden()
-	triggers_buff_type.set_buff_tooltip("Triggers buff for tower")
-	load_triggers(triggers_buff_type)
-	triggers_buff_type.apply_to_unit_permanent(self, self, 0)
-
 #	Apply offsets to account for tower being "on the second floor".
 #	Visual nodes get moved up by one tile.
 # 	Also move selection visual because it's placed at ground
@@ -203,6 +197,15 @@ func _ready():
 
 	init_stats_and_specials()
 
+#	NOTE: need to call load_triggers() after calling
+#	init_stats_and_specials() because stats must be
+#	available in load_triggers().
+	var triggers_buff_type: BuffType = BuffType.new("", 0, 0, true, self)
+	triggers_buff_type.set_hidden()
+	triggers_buff_type.set_buff_tooltip("Triggers buff for tower")
+	load_triggers(triggers_buff_type)
+	triggers_buff_type.apply_to_unit_permanent(self, self, 0)
+
 	tower_init()
 
 #	NOTE: must setup aura's after calling tower_init()