That will surely come with a new 30th Anniversary Secret Rare treatment and a plethora of reprints with new artwork
There are a lot of rules, your deck needs to be properly composed, and different generations sometimes introduce new mechanics
Some cards would never be viable
SE Secret Rare STAR Starlight Rare Nekroz of Metaltron X LIGHT Level 9 [ WyrmRitualPendulumEffect ] ATK 2500 DEF 3000 P Scale 5 If your "Nekroz" card(s) is banished face-up (except during the Damage Step): You can target 1 Spell/Trap on the field
If your deck has some number of fetchlands like Misty Rainforest, Evolving Wilds, Myriad Landscape, or Blighted Woodland, you should strongly consider Erinis for your deck
There are 500 serialized versions (with a unique number stamp) of each of the 70 Multiverse Legends, and these are found in less than 1% of Collector Boosters