diff --git a/src/main/java/com/minelittlepony/unicopia/block/state/StateMaps.java b/src/main/java/com/minelittlepony/unicopia/block/state/StateMaps.java
index c1e79395..519da259 100644
--- a/src/main/java/com/minelittlepony/unicopia/block/state/StateMaps.java
+++ b/src/main/java/com/minelittlepony/unicopia/block/state/StateMaps.java
@@ -43,6 +43,15 @@ public class StateMaps {
         a.replaceBlock(Blocks.INFESTED_MOSSY_STONE_BRICKS, Blocks.INFESTED_STONE_BRICKS);
     }), "moss");
 
+    public static final BlockStateConverter SILVERFISH_AFFECTED = register(Util.make(new BlockStateMap(), a -> {
+        a.replaceBlock(Blocks.CHISELED_STONE_BRICKS, Blocks.INFESTED_CHISELED_STONE_BRICKS);
+        a.replaceBlock(Blocks.COBBLESTONE, Blocks.INFESTED_COBBLESTONE);
+        a.replaceBlock(Blocks.CRACKED_STONE_BRICKS, Blocks.INFESTED_CRACKED_STONE_BRICKS);
+        a.replaceBlock(Blocks.MOSSY_STONE_BRICKS, Blocks.INFESTED_MOSSY_STONE_BRICKS);
+        a.replaceBlock(Blocks.STONE, Blocks.INFESTED_STONE);
+        a.replaceBlock(Blocks.STONE_BRICKS, Blocks.INFESTED_STONE_BRICKS);
+    }), "infestation");
+
     public static final BlockStateConverter FIRE_AFFECTED = register(Util.make(new BlockStateMap(), a -> {
         a.removeBlock(s -> s.getBlock() == Blocks.SNOW || s.getBlock() == Blocks.SNOW_BLOCK);
         a.removeBlock(s -> s.getBlock() instanceof PlantBlock);
diff --git a/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EndermanBehaviour.java b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EndermanBehaviour.java
new file mode 100644
index 00000000..6aeac619
--- /dev/null
+++ b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EndermanBehaviour.java
@@ -0,0 +1,28 @@
+package com.minelittlepony.unicopia.entity.behaviour;
+
+import com.minelittlepony.unicopia.ability.magic.Caster;
+
+import net.minecraft.block.Blocks;
+import net.minecraft.entity.mob.EndermanEntity;
+import net.minecraft.item.BlockItem;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Hand;
+
+public class EndermanBehaviour extends EntityBehaviour<EndermanEntity> {
+    @Override
+    public void update(Caster<?> source, EndermanEntity entity) {
+        if (source.getOwner().isSneaking() || source.getOwner().isSprinting()) {
+            entity.setTarget(entity);
+        } else {
+            entity.setTarget(null);
+        }
+
+        ItemStack stack = source.getOwner().getStackInHand(Hand.MAIN_HAND);
+        if (stack.getItem() instanceof BlockItem) {
+            entity.setCarriedBlock(((BlockItem)stack.getItem()).getBlock().getDefaultState());
+        } else {
+            entity.setCarriedBlock(Blocks.AIR.getDefaultState());
+        }
+
+    }
+}
diff --git a/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EntityBehaviour.java b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EntityBehaviour.java
index 5628dbdd..c748904c 100644
--- a/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EntityBehaviour.java
+++ b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/EntityBehaviour.java
@@ -139,6 +139,9 @@ public class EntityBehaviour<T extends Entity> {
         }
 
         to.setSneaking(from.isSneaking());
+        if (to instanceof PlayerEntity) {
+            to.setPose(from.getPose());
+        }
     }
 
     protected void copyInventory(LivingEntity from, LivingEntity l) {
@@ -172,8 +175,11 @@ public class EntityBehaviour<T extends Entity> {
     }
 
     static {
+        register(EndermanBehaviour::new, EntityType.ENDERMAN);
+        register(SpellcastingIllagerBehaviour::new, EntityType.ILLUSIONER, EntityType.EVOKER);
         register(ShulkerBehaviour::new, EntityType.SHULKER);
         register(CreeperBehaviour::new, EntityType.CREEPER);
+        register(SilverfishBehaviour::new, EntityType.SILVERFISH);
         register(ChickenBehaviour::new, EntityType.CHICKEN);
         register(MinecartBehaviour::new, EntityType.CHEST_MINECART, EntityType.COMMAND_BLOCK_MINECART, EntityType.FURNACE_MINECART, EntityType.HOPPER_MINECART, EntityType.MINECART, EntityType.SPAWNER_MINECART, EntityType.TNT_MINECART);
     }
diff --git a/src/main/java/com/minelittlepony/unicopia/entity/behaviour/SilverfishBehaviour.java b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/SilverfishBehaviour.java
new file mode 100644
index 00000000..a0a147f1
--- /dev/null
+++ b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/SilverfishBehaviour.java
@@ -0,0 +1,30 @@
+package com.minelittlepony.unicopia.entity.behaviour;
+
+import com.minelittlepony.unicopia.ability.magic.Caster;
+import com.minelittlepony.unicopia.block.state.StateMaps;
+import com.minelittlepony.unicopia.entity.player.Pony;
+import com.minelittlepony.unicopia.util.WorldEvent;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.mob.SilverfishEntity;
+import net.minecraft.util.math.BlockPos;
+
+public class SilverfishBehaviour extends EntityBehaviour<SilverfishEntity> {
+    @Override
+    public void update(Caster<?> source, SilverfishEntity entity) {
+        if (source instanceof Pony && !source.isClient()) {
+            Pony player = (Pony)source;
+
+            if (player.sneakingChanged() && player.getOwner().isSneaking()) {
+                BlockPos pos = entity.getBlockPos().down();
+                BlockState state = entity.world.getBlockState(pos);
+
+                if (StateMaps.SILVERFISH_AFFECTED.canConvert(state)) {
+
+                    entity.world.setBlockState(pos, StateMaps.SILVERFISH_AFFECTED.getConverted(state));
+                    WorldEvent.play(WorldEvent.DESTROY_BLOCK, entity.world, pos, state);
+                }
+            }
+        }
+    }
+}
diff --git a/src/main/java/com/minelittlepony/unicopia/entity/behaviour/SpellcastingIllagerBehaviour.java b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/SpellcastingIllagerBehaviour.java
new file mode 100644
index 00000000..41f36988
--- /dev/null
+++ b/src/main/java/com/minelittlepony/unicopia/entity/behaviour/SpellcastingIllagerBehaviour.java
@@ -0,0 +1,29 @@
+package com.minelittlepony.unicopia.entity.behaviour;
+
+import com.minelittlepony.unicopia.ability.magic.Caster;
+import com.minelittlepony.unicopia.entity.player.Pony;
+
+import net.minecraft.entity.mob.SpellcastingIllagerEntity;
+
+public class SpellcastingIllagerBehaviour extends EntityBehaviour<SpellcastingIllagerEntity> {
+    @Override
+    public void update(Caster<?> source, SpellcastingIllagerEntity entity) {
+
+        if (source instanceof Pony) {
+            Pony player = (Pony)source;
+
+            if (player.sneakingChanged()) {
+                if (player.getOwner().isSneaking()) {
+                    SpellcastingIllagerEntity.Spell[] spells = SpellcastingIllagerEntity.Spell.values();
+                    SpellcastingIllagerEntity.Spell spell = spells[entity.world.random.nextInt(spells.length - 1) + 1];
+
+                    entity.setSpell(spell);
+                    entity.setTarget(entity);
+                } else {
+                    entity.setSpell(SpellcastingIllagerEntity.Spell.NONE);
+                    entity.setTarget(null);
+                }
+            }
+        }
+    }
+}