Added effects of Mimicry/Room Service/Catching Charm, tweaked Sinistea's form chances, fixed bug in Fling about TRs.

Data/Scripts/011_Battle/Gen 8 abilities.rb

@@ -330,6 +330,14 @@ BattleHandlers::DamageCalcUserAbility.add(:GORILLATACTICS,
   }
 )
 
+BattleHandlers::AbilityOnSwitchIn.add(:MIMICRY,
+  proc { |ability, battler, battle|
+    next if battle.field.terrain == :None
+    BattleHandlers.triggerAbilityOnTerrainChange(ability, battler, battle, false)
+  }
+)
+
+
 =begin
 
 #===============================================================================
@@ -343,9 +351,4 @@ Suppresses all other abilities. Once this ability stops applying, triggers all
 abilities that activate when gained (if this happens because bearer switches
 out, abilities trigger before the replacement switches in).
 
-Mimicry
-The bearer's type changes depending on the terrain. Triggers upon entering
-battle and when terrain changes (and not when bearer's type is changed, e.g.
-with Soak).
-
 =end