First of all, he gains lore whenever he banishes an opponent's character in a challenge
Hes not the most capable card with his base stats, having just 1 Strength and 2 Willpower, but he does get an extra 2 Strength when hes Challenging, thanks to the Challenger +2 keyword
For example, some newsagents are known to carry booster packs, and small giftshops of discount stores may have some products, too
The question is whether there will actually be a deck in Standard than can run at least 15 legends (without running too many of the same legend and losing to itself thanks to dead draws)
10 winners from Japan and 12 winners from the rest of the world (five or three in each category, per region) received 100 copies of their design on physical cards
It's similar to a Prerelease Tournament