Test opening hands without leaving the deck

Draw sample hands right in the Goldfish tab, one at a time or several at once, before you bother opening the full playmat.

The quickest test there is

A deck's Goldfish tab can deal you an opening hand in place: no room, no mat, instant. It's the fastest way to answer "does this deck keep hands?", and the full playmat is one click further when you want to actually play one out.

Two views

If a hand makes you curious, Open playmat and play it out for a few turns. The mat does the bookkeeping while you watch the curve happen.