--- a/tests/src/maintenance.seqtest.ts
+++ b/tests/src/maintenance.seqtest.ts
@@ -192,19 +192,22 @@
       const blocksToWait = 6;
 
       // Scheduling works before the maintenance
-      await nftBeforeMM.scheduleAfter(blocksToWait, {scheduledId: scheduledIdBeforeMM})
-        .transfer(bob, {Substrate: superuser.address});
+      await helper.scheduler.scheduleAfter(blocksToWait, {scheduledId: scheduledIdBeforeMM})
+        .nft.transferToken(bob, collection.collectionId, nftBeforeMM.tokenId, {Substrate: superuser.address});
+
 
       await helper.wait.newBlocks(blocksToWait + 1);
       expect(await nftBeforeMM.getOwner()).to.be.deep.equal({Substrate: superuser.address});
 
       // Schedule a transaction that should occur *during* the maintenance
-      await nftDuringMM.scheduleAfter(blocksToWait, {scheduledId: scheduledIdDuringMM})
-        .transfer(bob, {Substrate: superuser.address});
+      await helper.scheduler.scheduleAfter(blocksToWait, {scheduledId: scheduledIdDuringMM})
+        .nft.transferToken(bob, collection.collectionId, nftDuringMM.tokenId, {Substrate: superuser.address});
+
 
       // Schedule a transaction that should occur *after* the maintenance
-      await nftDuringMM.scheduleAfter(blocksToWait * 2, {scheduledId: scheduledIdBunkerThroughMM})
-        .transfer(bob, {Substrate: superuser.address});
+      await helper.scheduler.scheduleAfter(blocksToWait * 2, {scheduledId: scheduledIdBunkerThroughMM})
+        .nft.transferToken(bob, collection.collectionId, nftDuringMM.tokenId, {Substrate: superuser.address});
+
 
       await helper.getSudo().executeExtrinsic(superuser, 'api.tx.maintenance.enable', []);
       expect(await maintenanceEnabled(helper.getApi()), 'MM is OFF when it should be ON').to.be.true;
@@ -214,16 +217,16 @@
       expect(await nftDuringMM.getOwner()).to.be.deep.equal({Substrate: bob.address});
 
       // Any attempts to schedule a tx during the MM should be rejected
-      await expect(nftDuringMM.scheduleAfter(blocksToWait, {scheduledId: scheduledIdAttemptDuringMM})
-        .transfer(bob, {Substrate: superuser.address}))
+      await expect(helper.scheduler.scheduleAfter(blocksToWait, {scheduledId: scheduledIdAttemptDuringMM})
+        .nft.transferToken(bob, collection.collectionId, nftDuringMM.tokenId, {Substrate: superuser.address}))
         .to.be.rejectedWith(/Invalid Transaction: Transaction call is not expected/);
 
       await helper.getSudo().executeExtrinsic(superuser, 'api.tx.maintenance.disable', []);
       expect(await maintenanceEnabled(helper.getApi()), 'MM is ON when it should be OFF').to.be.false;
 
       // Scheduling works after the maintenance
-      await nftAfterMM.scheduleAfter(blocksToWait, {scheduledId: scheduledIdAfterMM})
-        .transfer(bob, {Substrate: superuser.address});
+      await helper.scheduler.scheduleAfter(blocksToWait, {scheduledId: scheduledIdAfterMM})
+        .nft.transferToken(bob, collection.collectionId, nftAfterMM.tokenId, {Substrate: superuser.address});
 
       await helper.wait.newBlocks(blocksToWait + 1);
 
--- a/tests/src/scheduler.seqtest.ts
+++ b/tests/src/scheduler.seqtest.ts
@@ -47,9 +47,8 @@
     const token = await collection.mintToken(alice);
     const scheduledId = scheduleKind == 'named' ? helper.arrange.makeScheduledId() : undefined;
     const blocksBeforeExecution = 4;
-
-    await token.scheduleAfter(blocksBeforeExecution, {scheduledId})
-      .transfer(alice, {Substrate: bob.address});
+    await helper.scheduler.scheduleAfter(blocksBeforeExecution, {scheduledId})
+      .nft.transferToken(alice, collection.collectionId, token.tokenId, {Substrate: bob.address});
     const executionBlock = await helper.chain.getLatestBlockNumber() + blocksBeforeExecution + 1;
 
     expect(await token.getOwner()).to.be.deep.equal({Substrate: alice.address});
@@ -103,8 +102,8 @@
 
     expect(await token.getOwner()).to.be.deep.equal({Substrate: alice.address});
 
-    await token.scheduleAfter(waitForBlocks, {scheduledId})
-      .transfer(alice, {Substrate: bob.address});
+    await helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId})
+      .nft.transferToken(alice, collection.collectionId, token.tokenId, {Substrate: bob.address});
     const executionBlock = await helper.chain.getLatestBlockNumber() + waitForBlocks + 1;
 
     await helper.scheduler.cancelScheduled(alice, scheduledId);
@@ -363,8 +362,8 @@
     const scheduledId = helper.arrange.makeScheduledId();
     const waitForBlocks = 4;
 
-    await token.scheduleAfter(waitForBlocks, {scheduledId})
-      .transfer(bob, {Substrate: alice.address});
+    await helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId})
+      .nft.transferToken(bob, collection.collectionId, token.tokenId, {Substrate: alice.address});
     const executionBlock = await helper.chain.getLatestBlockNumber() + waitForBlocks + 1;
 
     await helper.getSudo().scheduler.cancelScheduled(superuser, scheduledId);
@@ -404,8 +403,8 @@
     const scheduledId = helper.arrange.makeScheduledId();
     const waitForBlocks = 6;
 
-    await token.scheduleAfter(waitForBlocks, {scheduledId})
-      .transfer(bob, {Substrate: alice.address});
+    await helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId})
+      .nft.transferToken(bob, collection.collectionId, token.tokenId, {Substrate: alice.address});
     const executionBlock = await helper.chain.getLatestBlockNumber() + waitForBlocks + 1;
 
     const priority = 112;
@@ -583,8 +582,8 @@
     const scheduledId = helper.arrange.makeScheduledId();
     const waitForBlocks = 4;
 
-    await token.scheduleAfter(waitForBlocks, {scheduledId})
-      .transfer(alice, {Substrate: bob.address});
+    await helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId})
+      .nft.transferToken(alice, collection.collectionId, token.tokenId, {Substrate: bob.address});
     const executionBlock = await helper.chain.getLatestBlockNumber() + waitForBlocks + 1;
 
     const scheduled = helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId});
@@ -614,8 +613,8 @@
     const scheduledId = helper.arrange.makeScheduledId();
     const waitForBlocks = 4;
 
-    await token.scheduleAfter(waitForBlocks, {scheduledId})
-      .transfer(alice, {Substrate: bob.address});
+    await helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId})
+      .nft.transferToken(alice, collection.collectionId, token.tokenId, {Substrate: bob.address});
     const executionBlock = await helper.chain.getLatestBlockNumber() + waitForBlocks + 1;
 
     await expect(helper.scheduler.cancelScheduled(bob, scheduledId))
@@ -655,8 +654,8 @@
     const scheduledId = helper.arrange.makeScheduledId();
     const waitForBlocks = 4;
 
-    await token.scheduleAfter(waitForBlocks, {scheduledId})
-      .transfer(bob, {Substrate: alice.address});
+    await helper.scheduler.scheduleAfter(waitForBlocks, {scheduledId})
+      .nft.transferToken(bob, collection.collectionId, token.tokenId, {Substrate: alice.address});
 
     const priority = 112;
     await expect(helper.scheduler.changePriority(alice, scheduledId, priority))
--- a/tests/src/util/playgrounds/unique.dev.ts
+++ b/tests/src/util/playgrounds/unique.dev.ts
@@ -609,7 +609,7 @@
     this.wait = new WaitGroup(this);
   }
 
-  getSudo<T extends UniqueHelper>() {
+  getSudo<T extends AstarHelper>() {
     // eslint-disable-next-line @typescript-eslint/naming-convention
     const SudoHelperType = SudoHelper(this.helperBase);
     return this.clone(SudoHelperType) as T;
@@ -636,7 +636,7 @@
     super(logger, options);
     this.wait = new WaitGroup(this);
   }
-  getSudo<T extends UniqueHelper>() {
+  getSudo<T extends AcalaHelper>() {
     // eslint-disable-next-line @typescript-eslint/naming-convention
     const SudoHelperType = SudoHelper(this.helperBase);
     return this.clone(SudoHelperType) as T;