The cost of cards escalates depending on their rarity - you'd have to open 300 Packs to get a single card of the highest "Crown" Rarity
The two problems with the deck are that it doesn't have good ways to ramp, and too few 2-drops, so the above list cleans some of that up with a few light upgrades
You only play it when you want the reusable graveyard but the life gain is what makes it playable
Individually, almost no resale value though, weirdly, some old commons in mint shape can still pull a few bucks from someone trying to complete a full set
Last is Jerren, Corrupted Bishop , a legendary creature that can transform if its control has 13 life, and become Ormendahl, the Corrupter, a powerful flying Demon
Thats not a bad thing though if all colors were good at all things, Magic wouldnt have lasted the test of time