That's one heck of a commit you've got there...

I may have got a bit behind with version control. A lot behind, in fact. Maybe I'll go back and split this sometime - then again, I probably won't. But hey, at least it's here!

src/main/java/electroblob/wizardry/item/ItemSpectralPickaxe.java

@@ -1,30 +1,44 @@
 package electroblob.wizardry.item;
 
+import electroblob.wizardry.registry.Spells;
+import net.minecraft.block.state.IBlockState;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.EnumRarity;
+import net.minecraft.item.Item;
 import net.minecraft.item.ItemPickaxe;
 import net.minecraft.item.ItemStack;
 import net.minecraft.world.World;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
 
+import javax.annotation.Nullable;
+
 public class ItemSpectralPickaxe extends ItemPickaxe implements IConjuredItem {
 
+	private EnumRarity rarity = EnumRarity.COMMON;
+
 	public ItemSpectralPickaxe(ToolMaterial material){
 		super(material);
-		setMaxDamage(getBaseDuration());
+		setMaxDamage(1200);
 		setNoRepair();
 		setCreativeTab(null);
+		addAnimationPropertyOverrides();
+	}
+
+	public Item setRarity(EnumRarity rarity){
+		this.rarity = rarity;
+		return this;
 	}
 
 	@Override
-	public int getBaseDuration(){
-		return 1200;
+	public EnumRarity getRarity(ItemStack stack){
+		return rarity;
 	}
 
 	@Override
 	public int getMaxDamage(ItemStack stack){
-		return this.getMaxDamageFromNBT(stack);
+		return this.getMaxDamageFromNBT(stack, Spells.conjure_pickaxe);
 	}
 
 	@Override
@@ -47,6 +61,18 @@ public class ItemSpectralPickaxe extends ItemPickaxe implements IConjuredItem {
 		stack.setItemDamage(damage + 1);
 	}
 
+	@Override
+	public float getDestroySpeed(ItemStack stack, IBlockState state){
+		float speed = super.getDestroySpeed(stack, state);
+		return speed > 1 ? speed * IConjuredItem.getDamageMultiplier(stack) : speed;
+	}
+
+	@Override
+	public int getHarvestLevel(ItemStack stack, String toolClass, @Nullable EntityPlayer player, @Nullable IBlockState blockState){
+		// Reuses the standard bonus amplifier calculation from SpellBuff to increase the mining level at advanced and master tier
+		return super.getHarvestLevel(stack, toolClass, player, blockState) + (int)((IConjuredItem.getDamageMultiplier(stack) - 1) / 0.4);
+	}
+
 	@Override
 	@SideOnly(Side.CLIENT)
 	public boolean hasEffect(ItemStack stack){
@@ -63,10 +89,19 @@ public class ItemSpectralPickaxe extends ItemPickaxe implements IConjuredItem {
 		return 0;
 	}
 
+	@Override
+	public boolean isEnchantable(ItemStack stack){
+		return false;
+	}
+
+	@Override
+	public boolean isBookEnchantable(ItemStack stack, ItemStack book){
+		return false;
+	}
+
 	// Cannot be dropped
 	@Override
 	public boolean onDroppedByPlayer(ItemStack item, EntityPlayer player){
 		return false;
 	}
-
 }