This seems to be like the Greek titans, the precursors of the gods who may have been destroyed by the later pantheon
On the turn a character comes into play, their Ink needs to dry, so they cant challenge, quest, or use abilities that require them to exert
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Notes and Rules Information for Yuna, Hope of Spira: Finality counters work on any permanent, not only creatures
Being able to play lands directly from your graveyard has empowered quite a few strategies in Magic, most notably Legacy Lands and Vintage Workshop, but you'll occasionally see it in Modern Golgari decks too
Just mix and match two packs, shuffle, and youre ready to play