As a semi-temporary measure, lets move 1.8 specific objects into their own classes, so we can be 1.7 and 1.8 compatable.

src/main/java/com/gmail/nossr50/util/BlockUtils.java

@@ -15,6 +15,7 @@ import org.bukkit.material.SmoothBrick;
 import com.gmail.nossr50.mcMMO;
 import com.gmail.nossr50.skills.repair.Repair;
 import com.gmail.nossr50.skills.salvage.Salvage;
+import com.gmail.nossr50.util.temp.DualSupport;
 
 public final class BlockUtils {
     private BlockUtils() {}
@@ -63,22 +64,11 @@ public final class BlockUtils {
             case DROPPER:
             case HOPPER:
             case TRAPPED_CHEST:
-            case IRON_TRAPDOOR:
-            case ACACIA_DOOR:
-            case SPRUCE_DOOR:
-            case BIRCH_DOOR:
-            case JUNGLE_DOOR:
-            case DARK_OAK_DOOR:
             case IRON_DOOR:
-            case ACACIA_FENCE:
-            case DARK_OAK_FENCE:
-            case BIRCH_FENCE:
-            case JUNGLE_FENCE:
-            case ARMOR_STAND:
                 return false;
 
             default:
-                return !isMcMMOAnvil(blockState) && !mcMMO.getModManager().isCustomAbilityBlock(blockState);
+                return DualSupport.canActivateAbilities(blockState) && !isMcMMOAnvil(blockState) && !mcMMO.getModManager().isCustomAbilityBlock(blockState);
         }
     }
 
@@ -173,12 +163,10 @@ public final class BlockUtils {
             case SANDSTONE:
             case STAINED_CLAY:
             case STONE:
-            case RED_SANDSTONE:
-            case PRISMARINE:
                 return true;
 
             default:
-                return isOre(blockState) || mcMMO.getModManager().isCustomMiningBlock(blockState);
+                return DualSupport.affectedBySuperBreaker(blockState) || isOre(blockState) || mcMMO.getModManager().isCustomMiningBlock(blockState);
         }
     }
 

src/main/java/com/gmail/nossr50/util/skills/CombatUtils.java

@@ -48,6 +48,7 @@ import com.gmail.nossr50.util.Misc;
 import com.gmail.nossr50.util.MobHealthbarUtils;
 import com.gmail.nossr50.util.Permissions;
 import com.gmail.nossr50.util.player.UserManager;
+import com.gmail.nossr50.util.temp.CompatableGuardianXP;
 import com.google.common.collect.ImmutableMap;
 
 public final class CombatUtils {
@@ -466,7 +467,6 @@ public final class CombatUtils {
                 switch (type) {
                     case BAT:
                     case SQUID:
-                    case RABBIT:
                         baseXP = ExperienceConfig.getInstance().getAnimalsXP();
                         break;
 
@@ -489,14 +489,6 @@ public final class CombatUtils {
                         baseXP = ExperienceConfig.getInstance().getCombatXP(type);
                         break;
 
-                    case GUARDIAN:
-                        if (((Guardian) target).isElder()) {
-                            baseXP = ExperienceConfig.getInstance().getElderGuardianXP();
-                        } else {
-                            baseXP = ExperienceConfig.getInstance().getCombatXP(type);
-                        }
-                        break;
-
                     case SKELETON:
                         switch (((Skeleton) target).getSkeletonType()) {
                             case WITHER:
@@ -515,6 +507,18 @@ public final class CombatUtils {
                         break;
 
                     default:
+                        if (type.name().equals("RABBIT")) {
+                            baseXP = ExperienceConfig.getInstance().getAnimalsXP();
+                            break;
+                        }
+                        if (type.name().equals("ENDERMITE")) {
+                            baseXP = ExperienceConfig.getInstance().getCombatXP(type);
+                            break;
+                        }
+                        if (type.name().equals("GUARDIAN")) {
+                            baseXP = CompatableGuardianXP.get(target);
+                            break;
+                        }
                         baseXP = 1.0;
                         mcMMO.getModManager().addCustomEntity(target);
                         break;

src/main/java/com/gmail/nossr50/util/temp/CompatableGuardianXP.java

@@ -0,0 +1,17 @@
+package com.gmail.nossr50.util.temp;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Guardian;
+
+import com.gmail.nossr50.config.experience.ExperienceConfig;
+
+public class CompatableGuardianXP {
+    public static double get(Entity target) {
+        if (((Guardian) target).isElder()) {
+            return ExperienceConfig.getInstance().getElderGuardianXP();
+        } else {
+            return ExperienceConfig.getInstance().getCombatXP(EntityType.GUARDIAN);
+        }
+    }
+}

src/main/java/com/gmail/nossr50/util/temp/DualSupport.java

@@ -0,0 +1,19 @@
+package com.gmail.nossr50.util.temp;
+
+import org.bukkit.block.BlockState;
+
+public class DualSupport {
+
+    public static boolean canActivateAbilities(BlockState blockState) {
+        String mat = blockState.getType().name();
+        return !mat.equals("IRON_TRAPDOOR") && !mat.equals("ACACIA_DOOR") && !mat.equals("SPRUCE_DOOR") && !mat.equals("BIRCH_DOOR")
+                && !mat.equals("JUNGLE_DOOR") && !mat.equals("DARK_OAK_DOOR") && !mat.equals("ACACIA_FENCE") && !mat.equals("DARK_OAK_FENCE")
+                && !mat.equals("BIRCH_FENCE") && !mat.equals("JUNGLE_FENCE") && !mat.equals("ARMOR_STAND");
+    }
+
+    public static boolean affectedBySuperBreaker(BlockState blockState) {
+        String mat = blockState.getType().name();
+        return mat.equals("PRISMARINE") || mat.equals("RED_SANDSTONE");
+    }
+
+}