diff --git a/tutor/cli.py b/tutor/cli.py
index aa1de7c..e3c557f 100644
--- a/tutor/cli.py
+++ b/tutor/cli.py
@@ -73,11 +73,30 @@ def import_group():
 
 @import_group.command("cards")
 @click.argument("filename", type=click.Path(dir_okay=False))
+@click.option(
+    "--mode",
+    type=click.Choice([mode.value for mode in tutor.csvimport.ImportMode]),
+    default=tutor.csvimport.ImportMode.add.value,
+)
 @click.pass_context
-def import_cards(ctx, filename):
-    tornado.ioloop.IOLoop.current().run_sync(
-        lambda: tutor.csvimport.load(ctx.obj, filename)
-    )
+def import_cards(ctx, filename, mode):
+    async def _import_cards():
+        # count total lines
+        with open(filename, "r") as csvfile:
+            linecount = sum(1 for _ in csvfile)
+        last_line = 0
+        with click.progressbar(
+            length=linecount,
+            label=f"Importing cards ({mode})",
+        ) as bar:
+            async for card, line in tutor.csvimport.load(
+                ctx.obj, filename, mode=tutor.csvimport.ImportMode[mode]
+            ):
+                bar.update(line - last_line)
+                last_line = line
+            bar.update(linecount - last_line)
+
+    tornado.ioloop.IOLoop.current().run_sync(_import_cards)
 
 
 @import_group.command("deck")
diff --git a/tutor/csvimport.py b/tutor/csvimport.py
index 85180a9..f364805 100644
--- a/tutor/csvimport.py
+++ b/tutor/csvimport.py
@@ -1,4 +1,5 @@
 import csv
+import enum
 import logging
 import typing
 
@@ -8,7 +9,14 @@ import tutor.database
 import tutor.models
 
 
-async def load(settings: dict, filename: str) -> typing.List[tutor.models.Card]:
+class ImportMode(enum.Enum):
+    add = "add"
+    replace = "replace"
+
+
+async def load(
+    settings: dict, filename: str, mode: ImportMode = ImportMode.add
+) -> typing.Iterable[typing.Tuple[tutor.models.Card, int]]:
     """Load cards from a CSV file.
 
     Currently supports the following formats:
@@ -17,7 +25,9 @@ async def load(settings: dict, filename: str) -> typing.List[tutor.models.Card]:
     """
     cards = []
     async with aiosqlite.connect(settings["database"]) as db:
-        with open(filename) as csvfile:
+        if mode == ImportMode.replace:
+            await tutor.database.clear_copies(db)
+        with open(filename, "r") as csvfile:
             reader = csv.DictReader(csvfile)
             for row in reader:
                 is_foil = "Foil" in row and row["Foil"].lower() == "foil"
@@ -35,13 +45,15 @@ async def load(settings: dict, filename: str) -> typing.List[tutor.models.Card]:
                         foil=is_foil or None,
                     )
                 if not found:
-                    logging.warning("Could not find card for row %s", row)
+                    # logging.warning("Could not find card for row %s", row)
+                    continue
                 elif len(found) > 1:
-                    logging.warning(
-                        "Found %s possibilities for row %s", len(found), row
-                    )
-                    for card in found:
-                        logging.warning(card)
+                    # logging.warning(
+                    #     "Found %s possibilities for row %s", len(found), row
+                    # )
+                    # for card in found:
+                    #     logging.warning(card)
+                    continue
                 else:
                     card = tutor.models.CardCopy(
                         card=found[0],
@@ -50,7 +62,7 @@ async def load(settings: dict, filename: str) -> typing.List[tutor.models.Card]:
                     )
                     logging.info((quantity, card))
                     for i in range(quantity):
-                        cards.append(card)
                         await tutor.database.store_copy(db, card)
+                        yield card, reader.line_num
+
         await db.commit()
-    return cards
diff --git a/tutor/database.py b/tutor/database.py
index 7abf895..f62aedd 100644
--- a/tutor/database.py
+++ b/tutor/database.py
@@ -327,6 +327,15 @@ async def store_copy(db: aiosqlite.Connection, copy: tutor.models.CardCopy) -> N
     )
 
 
+async def clear_copies(
+    db: aiosqlite.Connection, collection: typing.Optional[str] = None
+):
+    if collection:
+        await db.execute("DELETE FROM copies WHERE collection = ?", collection)
+    else:
+        await db.execute("DELETE FROM copies")
+
+
 async def store_deck(db: aiosqlite.Connection, name: str) -> None:
     cursor = await db.execute(
         "INSERT INTO `decks` (`name`) VALUES (:name)",