Info on these Imakuni cards

How uncommon are these? I love this set and don’t often see them for sale:

bulbapedia.bulbagarden.net/wiki/Imakuni%3F%27s_Whismur_(T_Promo_22)

bulbapedia.bulbagarden.net/wiki/Imakuni%3F%27s_Loudred_(T_Promo_23)

bulbapedia.bulbagarden.net/wiki/Imakuni%3F%27s_Exploud_ex_(T_Promo_24)

Haven’t seen these for sale for a long time now, they’re not super/ultra-rare but they are hard to find, much like most T-Promotional cards.