Supercan by Greg Rostami

Created by: Greg Rostami

Supercan by Greg Rostami is a mind-blowing card prediction trick that combines mathematics, spectator freedom, and a hands-off approach to create an impossible moment of magic. A spectator freely chooses numbers (via dice rolls, personal dates, or random inputs), multiplies them using their own calculator, and deals cards based on the resulting digits—all while the magician never touches the deck. Despite the apparent randomness, the spectator always lands on a predicted card (e.g., the Ace of Hearts or Three of Hearts), which is revealed in a sealed box, envelope, or pocket. This is a versatile close-up, parlour, or stage trick that requires no sleight of hand, making it accessible to magicians of all skill levels. Buyers should note that while the method is simple, the presentation and narrative are key to maximizing its impact.

Where to buy

SUPERCAN by Greg Rostami from Monster Magic
Monster MagicSUPERCAN by Greg Rostami£20.99
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SUPERCAN by Greg Rostami from Alakazam Magic
Alakazam MagicSUPERCAN by Greg Rostami£21.79
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SUPERCAN by Greg Rostami from Magicbox
MagicboxSUPERCAN by Greg Rostami£22.20
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Key features

  • No sleight of hand required

  • Angle-proof and minimal setup

  • Multiple reveal options (box, envelope, pocket, etc.)

  • Uses spectator's calculator for fairness

  • Works with any deck (no duplicates needed)

  • Instant reset for repeat performances

Pros

  • Highly deceptive and baffling

  • Spectator handles all the actions (no heat on the magician)

  • Adaptable for close-up, parlour, or stage

  • Strong audience reactions

  • Affordable and well-received by magicians

Cons

  • Requires basic mental math under pressure

  • Some may find the number-input process lengthy

  • Initial setup with gimmicks may need practice

Effect

Supercan by Greg Rostami is a card prediction trick that appears completely fair and impossible to the audience. A spectator freely chooses numbers, multiplies them using a calculator, and deals cards based on the result. Despite their total control over the process, the magician’s prediction—a single card placed in a box or envelope beforehand—matches the exact card they land on. The deck is never touched by the magician, making the effect even more baffling.

Full Details

Supercan is a mathematical card trick that requires no sleight of hand. The method relies on a clever principle that ensures the prediction always aligns with the spectator’s choices. Key features include:

  • No forced numbers – The spectator can choose any numbers they like.
  • No deck manipulation – The magician never touches the cards after the initial setup.
  • Multiple reveal options – The prediction can be in a box, envelope, or even the magician’s pocket.
  • Angle-proof – Works in any performance setting, from close-up to stage.
  • Uses a standard deck – No duplicates or gimmicks are needed in the main deck.

Who Should Consider the Trick

Supercan is ideal for:

  • Beginners – No sleight of hand is required, making it accessible.
  • Mentalists – The mathematical approach fits well with prediction-based routines.
  • Performers who dislike memorization – No need to remember stacks or complex setups.
  • Magicians looking for a hands-off effect – The spectator does all the handling.

Difficulty

The trick is easy to perform but requires some mental math under pressure. Reviewers like Steve Faulkner mention practicing basic calculations to ensure smooth execution. However, the method itself is straightforward, and most magicians can perform it after a short practice session.

What Magicians Say

  • Steve Faulkner (RealMagicReview) – "Even with my terrible math skills, I made it work. The trick is angle-proof, versatile, and gets strong reactions."
  • Craig Petty (Magic-TV) – "Supercan is deceptive and easy to perform. The spectator’s freedom makes it feel completely fair."
  • SaturnMagicShop – "Magicians were left completely baffled. The trick’s simplicity is its greatest strength."
  • AlakazamMagicUK – "A remarkably deceptive number trick. The process feels random, but the outcome is always perfect."

Supercan is praised for its strong impact, minimal setup, and ability to fool both audiences and fellow magicians. If you want a hands-off, mathematical prediction that plays big, this is a solid choice.

What people are saying about Supercan

AlakazamMagicUK (Jamie Daws) says...

It's so cool because the spectator rearranges the numbers, deals the cards, and still hits the prediction—it feels ridiculously fair.

magic-tv (Craig Petty) says...

I have zero idea how that's possible. [...] It's too simple, and that's what bothers me—the deck wasn't touched!

MurphysMagicSupplies says...

Your prediction is ALWAYS exactly at their number, in a deck you NEVER TOUCH. Supercan is the ULTIMATE Card at Number.

RealMagicReview (Steve Faulkner) says...

Even with my brain and if you think you're bad at mathematics under pressure, I'm with you. [...] The fact that I just did that is really impressive—not because of the trick, but because of how fair it feels.

SaturnMagicShop says...

Supercan is a miracle! You could have typed in any numbers in the whole world, yet you ended up on the predicted card.

Performance videos

Review videos