In order to estimate how the opponent sees your stats, perform the following steps:
1.Click the left mouse button on any part of the HUD for your opponent, in order to open the general Popup.
2. Click on the Settings icon and select Show Hero stats:
Before you start to create your own custom stats you should take a look at our brief guide:
Creating custom statistics in Hand2Note
For example, if you want to create a stat how often do you raise the player after a limp you can use "Is Hero" filter for Villain: