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/spell/CurseOfEnfeeblement.java

@@ -0,0 +1,60 @@
+package electroblob.wizardry.spell;
+
+import electroblob.wizardry.registry.WizardryPotions;
+import electroblob.wizardry.util.MagicDamage;
+import electroblob.wizardry.util.ParticleBuilder;
+import electroblob.wizardry.util.ParticleBuilder.Type;
+import electroblob.wizardry.util.SpellModifiers;
+import electroblob.wizardry.util.WizardryUtilities;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.item.EnumAction;
+import net.minecraft.potion.PotionEffect;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.World;
+
+public class CurseOfEnfeeblement extends SpellRay {
+
+	public CurseOfEnfeeblement(){
+		super("curse_of_enfeeblement", false, EnumAction.NONE);
+		this.soundValues(1, 1.1f, 0.2f);
+		addProperties(EFFECT_STRENGTH);
+	}
+
+	@Override
+	protected boolean onEntityHit(World world, Entity target, Vec3d hit, EntityLivingBase caster, Vec3d origin, int ticksInUse, SpellModifiers modifiers){
+
+		if(WizardryUtilities.isLiving(target)){
+			// This will actually run out in the end, but only if you leave Minecraft running for 3.4 years
+			((EntityLivingBase)target).addPotionEffect(new PotionEffect(WizardryPotions.curse_of_enfeeblement,
+					Integer.MAX_VALUE, getProperty(EFFECT_STRENGTH).intValue() + SpellBuff.getStandardBonusAmplifier(modifiers.get(SpellModifiers.POTENCY))));
+			// Reduce the target's health to its new max health if necessary
+			if(((EntityLivingBase)target).getHealth() > ((EntityLivingBase)target).getMaxHealth()){
+				target.attackEntityFrom(MagicDamage.causeDirectMagicDamage(caster, MagicDamage.DamageType.WITHER),
+						((EntityLivingBase)target).getHealth() - ((EntityLivingBase)target).getMaxHealth());
+			}
+		}
+
+		return true;
+	}
+
+	@Override
+	protected boolean onBlockHit(World world, BlockPos pos, EnumFacing side, Vec3d hit, EntityLivingBase caster, Vec3d origin, int ticksInUse, SpellModifiers modifiers){
+		return false;
+	}
+
+	@Override
+	protected boolean onMiss(World world, EntityLivingBase caster, Vec3d origin, Vec3d direction, int ticksInUse, SpellModifiers modifiers){
+		return true;
+	}
+	
+	@Override
+	protected void spawnParticle(World world, double x, double y, double z, double vx, double vy, double vz){
+		ParticleBuilder.create(Type.DARK_MAGIC).pos(x, y, z).clr(0.2f, 0, 0.3f).spawn(world);
+		ParticleBuilder.create(Type.DARK_MAGIC).pos(x, y, z).clr(0.1f, 0, 0).spawn(world);
+		ParticleBuilder.create(Type.SPARKLE).pos(x, y, z).time(12 + world.rand.nextInt(8)).clr(0.4f, 0, 0).spawn(world);
+	}
+
+}