Firstly, you can steal a 'walker as well
The most expensive piece ever sold (at least on record) is a mint condition Japanese Pokmon card called Pikachu Illustrator originally given away to just 39 art contest winners in 1998 which is valued at $5,275,000
Scoring works like this: for each match, players play two games (one where they go first, one where the other player goes first)
White Mono-white offers several powerful options for commanders which could easily fit into your 99 if you don't pick them to lead the charge
Then, draw 5 cards
While commanders like Drizzt Do'Urden, Gavi, Nest Warden, Jinnie Fay, Jetmir's Second, Jolrael, Mwonvuli Recluse, and Lord Windgrace give you tokens that are Cats (or Cat Warriors), theyre usually asking you to build around other strategies, not cats as a theme