diff --git a/src/builders/ZodSchemaClassBuilder.ts b/src/builders/ZodSchemaClassBuilder.ts
index ba1d94e..1ad8caa 100644
--- a/src/builders/ZodSchemaClassBuilder.ts
+++ b/src/builders/ZodSchemaClassBuilder.ts
@@ -7,6 +7,7 @@ import { DejsonifiableZodSchemaObject } from "../traits/DejsonifiableZodSchemaOb
 import { ExtendableZodSchemaObject } from "../traits/ExtendableZodSchemaObject"
 import { InstantiableZodSchemaObject } from "../traits/InstantiableZodSchemaObject"
 import { JsonifiableZodSchemaObject } from "../traits/JsonifiableZodSchemaObject"
+import { ZodSchemaObjectInstantiationSchemas } from "../traits/ZodSchemaObjectInstantiationSchemas"
 import { StaticMembers } from "../util"
 
 
@@ -63,7 +64,7 @@ extends TraitExpressionBuilder<Superclass, Traits> {
 
             [
                 ...this.expressionTraits,
-                // ZodSchemaObjectInstantiationSchemas,
+                ZodSchemaObjectInstantiationSchemas,
                 InstantiableZodSchemaObject,
                 ExtendableZodSchemaObject,
             ],
diff --git a/src/tests.ts b/src/tests.ts
index ae935a1..f233e7f 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -41,6 +41,8 @@ const test = User.schema.extend({
 )
 
 const inst = User.create({ id: 1n, name: "" })
+const instEffect = User.createEffect({ id: 1n, name: "" })
+
 // console.log(inst)
 const jsonifiedUser = await inst.jsonifyPromise()
 
diff --git a/src/traits/InstantiableZodSchemaObject.ts b/src/traits/InstantiableZodSchemaObject.ts
index 898ca9e..1817ab6 100644
--- a/src/traits/InstantiableZodSchemaObject.ts
+++ b/src/traits/InstantiableZodSchemaObject.ts
@@ -1,4 +1,4 @@
-import { TraitStaticMembers, expression } from "@thilawyn/traitify-ts"
+import { TraitStaticMembers, trait } from "@thilawyn/traitify-ts"
 import { HasRequiredKeys } from "type-fest"
 import { z } from "zod"
 import { ZodSchemaClass } from "../shapes/ZodSchemaClass"
@@ -6,6 +6,8 @@ import { parseZodTypeEffect } from "../util"
 import { ZodSchemaObjectInstantiationSchemas } from "./ZodSchemaObjectInstantiationSchemas"
 
 
+type ZodSchemaObjectInstantiationSchemasStaticMembers = TraitStaticMembers<typeof ZodSchemaObjectInstantiationSchemas>
+
 type NewZodSchemaInstanceInput<
     Values        extends object,
     DefaultValues extends Partial<Values>,
@@ -26,66 +28,63 @@ type NewZodSchemaInstanceArgs<Input extends object> = (
 )
 
 
-export const InstantiableZodSchemaObject = expression
-    .expresses(ZodSchemaObjectInstantiationSchemas)
+export const InstantiableZodSchemaObject = trait
+    .implement(Super => class InstantiableZodSchemaObject extends Super {
+        static create<
+            Instance                           extends Values,
+
+            SchemaWithDefaultValuesT           extends z.ZodRawShape,
+            SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
+            SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
+
+            Values                             extends object,
+            PartialValues                      extends Partial<Values>,
+        >(
+            this: (
+                ZodSchemaClass<Instance, any, any, any, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues> &
+                ZodSchemaObjectInstantiationSchemasStaticMembers
+            ),
+            ...[values, params]: NewZodSchemaInstanceArgs<PartialValues>
+        ) {
+            return this.instantiationSchemaWithDefaultValues().parse(values, params)
+        }
+
+        static async createPromise<
+            Instance                           extends Values,
+
+            SchemaWithDefaultValuesT           extends z.ZodRawShape,
+            SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
+            SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
+
+            Values                             extends object,
+            PartialValues                      extends Partial<Values>,
+        >(
+            this: (
+                ZodSchemaClass<Instance, any, any, any, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues> &
+                ZodSchemaObjectInstantiationSchemasStaticMembers
+            ),
+            ...[values, params]: NewZodSchemaInstanceArgs<PartialValues>
+        ) {
+            return this.instantiationSchemaWithDefaultValues().parseAsync(values, params)
+        }
+
+        static createEffect<
+            Instance                           extends Values,
+
+            SchemaWithDefaultValuesT           extends z.ZodRawShape,
+            SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
+            SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
+
+            Values                             extends object,
+            PartialValues                      extends Partial<Values>,
+        >(
+            this: (
+                ZodSchemaClass<Instance, any, any, any, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues> &
+                ZodSchemaObjectInstantiationSchemasStaticMembers
+            ),
+            ...[values, params]: NewZodSchemaInstanceArgs<PartialValues>
+        ) {
+            return parseZodTypeEffect(this.instantiationSchemaWithDefaultValues(), values, params)
+        }
+    })
     .build()
-    .subtrait()
-        .implement(Super => class InstantiableZodSchemaObject extends Super {
-            static create<
-                Instance                           extends Values,
-
-                SchemaWithDefaultValuesT           extends z.ZodRawShape,
-                SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
-                SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
-
-                Values                             extends object,
-                PartialValues                      extends Partial<Values>,
-            >(
-                this: (
-                    ZodSchemaClass<Instance, any, any, any, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues> &
-                    TraitStaticMembers<typeof ZodSchemaObjectInstantiationSchemas>
-                ),
-                ...[values, params]: NewZodSchemaInstanceArgs<PartialValues>
-            ) {
-                return this.instantiationSchemaWithDefaultValues().parse(values, params)
-            }
-
-            static async createPromise<
-                Instance                           extends Values,
-
-                SchemaWithDefaultValuesT           extends z.ZodRawShape,
-                SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
-                SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
-
-                Values                             extends object,
-                PartialValues                      extends Partial<Values>,
-            >(
-                this: (
-                    ZodSchemaClass<Instance, any, any, any, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues> &
-                    TraitStaticMembers<typeof ZodSchemaObjectInstantiationSchemas>
-                ),
-                ...[values, params]: NewZodSchemaInstanceArgs<PartialValues>
-            ) {
-                return this.instantiationSchemaWithDefaultValues().parseAsync(values, params)
-            }
-
-            static createEffect<
-                Instance                           extends Values,
-
-                SchemaWithDefaultValuesT           extends z.ZodRawShape,
-                SchemaWithDefaultValuesUnknownKeys extends z.UnknownKeysParam,
-                SchemaWithDefaultValuesCatchall    extends z.ZodTypeAny,
-
-                Values                             extends object,
-                PartialValues                      extends Partial<Values>,
-            >(
-                this: (
-                    ZodSchemaClass<Instance, any, any, any, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues> &
-                    TraitStaticMembers<typeof ZodSchemaObjectInstantiationSchemas>
-                ),
-                ...[values, params]: NewZodSchemaInstanceArgs<PartialValues>
-            ) {
-                return parseZodTypeEffect(this.instantiationSchemaWithDefaultValues(), values, params)
-            }
-        })
-        .build()