Portal is a rare, visual ace assembly, where 3 aces vanish one by one to appear under the ace of spades.
The problem with many other ace assembly routines is that the cards are always kept face down, your audience just has to believe the aces are actually there (when they're not).
With PORTAL by Eric Jones, you can actually SEE the aces every step of the way, no switch, no palm, face up - undeniable!
They are there - and then with zero sleights, they're not anymore.
