diff --git a/src/main/java/org/violetmoon/quark/base/util/BlockUtils.java b/src/main/java/org/violetmoon/quark/base/util/BlockUtils.java
index 3af1626fa6..3256acebbc 100644
--- a/src/main/java/org/violetmoon/quark/base/util/BlockUtils.java
+++ b/src/main/java/org/violetmoon/quark/base/util/BlockUtils.java
@@ -12,6 +12,7 @@
 /**
  * Assortment of Block Related Utilities
  */
+@Deprecated(forRemoval = true)
 public class BlockUtils {
 	public static boolean isWoodBased(BlockState state) {
 		NoteBlockInstrument noteBlockInstrument = state.instrument();
diff --git a/src/main/java/org/violetmoon/quark/base/util/QuarkEffect.java b/src/main/java/org/violetmoon/quark/base/util/QuarkEffect.java
index f5c2ce5bd3..bec4189ffb 100755
--- a/src/main/java/org/violetmoon/quark/base/util/QuarkEffect.java
+++ b/src/main/java/org/violetmoon/quark/base/util/QuarkEffect.java
@@ -16,6 +16,7 @@
 
 import org.violetmoon.quark.base.Quark;
 
+@Deprecated(forRemoval = true)
 public class QuarkEffect extends MobEffect {
 
 	public QuarkEffect(String name, MobEffectCategory type, int color) {
diff --git a/src/main/java/org/violetmoon/quark/base/util/SimpleInventoryBlockEntity.java b/src/main/java/org/violetmoon/quark/base/util/SimpleInventoryBlockEntity.java
index 388ca71c41..f9a96c319c 100644
--- a/src/main/java/org/violetmoon/quark/base/util/SimpleInventoryBlockEntity.java
+++ b/src/main/java/org/violetmoon/quark/base/util/SimpleInventoryBlockEntity.java
@@ -30,6 +30,7 @@
 import org.violetmoon.zeta.block.be.ZetaBlockEntity;
 
 // formerly from AutoRegLib
+@Deprecated(forRemoval = true)
 public abstract class SimpleInventoryBlockEntity extends ZetaBlockEntity implements WorldlyContainer {
 
 	public SimpleInventoryBlockEntity(BlockEntityType<?> tileEntityTypeIn, BlockPos pos, BlockState state) {
diff --git a/src/main/java/org/violetmoon/quark/base/util/VanillaWoods.java b/src/main/java/org/violetmoon/quark/base/util/VanillaWoods.java
index c85a6bd5ba..09f0579fa6 100644
--- a/src/main/java/org/violetmoon/quark/base/util/VanillaWoods.java
+++ b/src/main/java/org/violetmoon/quark/base/util/VanillaWoods.java
@@ -4,6 +4,7 @@
 import net.minecraft.world.level.block.Blocks;
 import net.minecraft.world.level.block.SoundType;
 
+@Deprecated(forRemoval = true)
 public class VanillaWoods {
 
 	public static record Wood(String name, Block log, Block wood, Block planks, Block leaf, Block fence, boolean nether, SoundType soundWood, SoundType soundPlanks) {}