Chance Of Obtaining Getting Boss Cards Using The Card Ability

[Zwicked]

I was wondering if anyone knows the chance of getting a boss card from monsters using the card ability in battle. I managed to get a Shumi card from T-rexaur and a Trauma card from a Catchipillar when I first started using the ability.

I then lost them playing Triple Triad and repeatedly replaying the npc, they never replayed the boss cards they won off me so it seems that they are lost. I then tried farming some more boss cards but to no avail. I have since farmed ~ 50 Bite Bug cards 40 Catchipillar and 12 T-rexaur cards but never recieved another boss card.

[d-Enzo the Technogressist]

No, it doesn't matter at all.
The odds for a boss card drop using Card command are always 1/16.