--- a/net/minecraft/world/level/block/entity/SculkCatalystBlockEntity.java
+++ b/net/minecraft/world/level/block/entity/SculkCatalystBlockEntity.java
@@ -32,14 +32,18 @@
     public SculkCatalystBlockEntity(BlockPosition blockposition, IBlockData iblockdata) {
         super(TileEntityTypes.SCULK_CATALYST, blockposition, iblockdata);
         this.catalystListener = new SculkCatalystBlockEntity.a(iblockdata, new BlockPositionSource(blockposition));
+        catalystListener.level = level; // CraftBukkit
     }
 
     public static void serverTick(World world, BlockPosition blockposition, IBlockData iblockdata, SculkCatalystBlockEntity sculkcatalystblockentity) {
+        org.bukkit.craftbukkit.event.CraftEventFactory.sourceBlockOverride = sculkcatalystblockentity.getBlockPos(); // CraftBukkit - SPIGOT-7068: Add source block override, not the most elegant way but better than passing down a BlockPosition up to five methods deep.
         sculkcatalystblockentity.catalystListener.getSculkSpreader().updateCursors(world, blockposition, world.getRandom(), true);
+        org.bukkit.craftbukkit.event.CraftEventFactory.sourceBlockOverride = null; // CraftBukkit
     }
 
     @Override
     public void load(NBTTagCompound nbttagcompound) {
+        super.load(nbttagcompound); // CraftBukkit - SPIGOT-7393: Load super Bukkit data
         this.catalystListener.sculkSpreader.load(nbttagcompound);
     }
 
@@ -60,6 +64,7 @@
         final SculkSpreader sculkSpreader;
         private final IBlockData blockState;
         private final PositionSource positionSource;
+        private World level; // CraftBukkit
 
         public a(IBlockData iblockdata, PositionSource positionsource) {
             this.blockState = iblockdata;
@@ -116,7 +121,7 @@
             return this.sculkSpreader;
         }
 
-        private void bloom(WorldServer worldserver, BlockPosition blockposition, IBlockData iblockdata, RandomSource randomsource) {
+        public void bloom(WorldServer worldserver, BlockPosition blockposition, IBlockData iblockdata, RandomSource randomsource) {
             worldserver.setBlock(blockposition, (IBlockData) iblockdata.setValue(SculkCatalystBlock.PULSE, true), 3);
             worldserver.scheduleTick(blockposition, iblockdata.getBlock(), 8);
             worldserver.sendParticles(Particles.SCULK_SOUL, (double) blockposition.getX() + 0.5D, (double) blockposition.getY() + 1.15D, (double) blockposition.getZ() + 0.5D, 2, 0.2D, 0.0D, 0.2D, 0.0D);