A more competitive build will be towards outright wincons that don't require going to combat, using the Hydra tokens to defend yourself
Collecting specific cards from a pool of over a hundred per expansion, and often needing to pull from multiple expansion packs to get everything you need, takes a long time, a lot of luck, or both
For example, you want a mittful of creatures if you plan to cast Last March of the Ents or Ghalta, Stampede Tyrant
But while released alongside the much cheaper Unlimited reprint set, and not Alpha, first edition artist proofs are even more scarce than real Unlimited, Beta, or Alpha cards (or anniversary edition 'non-tournament legal' pieces for that matter)
Below are the highlights of cards included in each booster pack
Ultimecia's card in Magic: The Gathering Arena , Ultimecia, Time Sorceress, is a blue and black creature card with a five mana cost