You may cast Illusionist’s Stratagem without any targets if you wish to just draw a card.
Illusionist's Stratagem
If each target creature is an illegal target as Illusionist’s Stratagem resolves, the spell doesn’t resolve. You won’t draw a card.
Each card that returns to the battlefield will be a new object with no connection to the creature that was exiled. It won’t be in combat or have any additional abilities it may have had when it was exiled. Any +1/+1 counters on it or Auras attached to it are removed, and any Equipment will no longer be attached.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Svetlin Velinov
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
