(It doesnt need to have gone on the adventure first.) Find him a weapon as big as his dreams. Yorvo, lord of Garenbrig Illustrated by Dallas Williams Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Kitsa has vigilance, prowess, and two abilities - you can tap the otter to draw a card and then discard a card, or you can spend two generic mana and tap it to copy an instant or sorcery spell you control, with the caveat that Kitsa needs three power to do so
Being able to enchant a permanent is a marked increase in power level that you might not pick up on straight off, and one that makes me excited for the future
This sets up the discard pile for Mewtwo & Mew-GX, as well as giving you Energy advantage with the ones it adds
The Bazaar is, to this day, underappreciated as a powerhouse card
Its a lot like an Expedition Map that you dont have to use an actual spell slot on, though Urza's Cave offers limited utility until you crack it