Jarek, Squire to the Lion Knights is an Ordinary Hero in the Base Set. He is a Kickstarter comissioned hero card.
Lore[]
"As a Squire, Jarek loved nothing more than stories and legends. He had no idea that someday, he would become one."
Trivia[]
Jarek and The Fool are the only Hero cards to be featured in all versions of Base Set, including both Alpha Prototypes.
The general Jarek page is here.