Possible packs include Scarlet & Violet sets (Surging Sparks, Prismatic Evolutions, Paldean Fates, 151), Sword & Shield sets, Sun & Moon, and potentially vintage WOTC packs depending on availability
I find it most useful to look at effect for grouping but if we wanted to group by mana cost we would be better positions to know which are the most played
The moral of the story is that nostalgia always sells , and we often find all kinds of treasures in the most unexpected places around the house
If youre inclined toward infinite combos, you could Entomb for Mikaeus, the Unhallowed and Triskelion
That includes new Arabian Nights cards, and you'll be the first one to know when the cards you are looking for are available!
And the Fight side is, well, a fight effect