Small correction for missing dependencies.

Forgot to add system and linq in a couple of cards, corrected

Assets/CardEffect/BT20/Purple/BT20_067.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 
@@ -106,7 +107,7 @@ namespace DCGO.CardEffects
 
                 bool CanUseCondition(Hashtable hashtable)
                 {
-                    return CardEffectCommons.CanWhenDigivolving(hashtable, card);
+                    return CardEffectCommons.CanTriggerWhenDigivolving(hashtable, card);
                 }
 
                 bool CanActivateCondition(Hashtable hashtable)

Assets/CardEffect/BT20/Purple/BT20_068.cs

@@ -1,6 +1,6 @@
 using System.Collections;
 using System.Collections.Generic;
-
+using System.Linq;
 namespace DCGO.CardEffects
 {
     public class BT20_068 : CEntity_Effect