Use BCW Deck Guards to protect Card Fight Vanguard, and other CCGs
You dont pick them up in a yard sale like old video games, you dont find them randomly stuffed between your couch cushions, and if you have them, you absolutely know exactly what theyre worth
When a creature with Persist dies, it'll come back with a -1/-1 counter - but only if it didn't have such a counter previously already, at which point it's gone forever

Mythical Pokemon Collection Box [Mew] $635.17 Super-Premium Collection [Mew & Mewtwo] $4697.97 2022 World Championship Deck: Andre Chiasson (The Shape of Mew) $29.05 2023 World Championship Deck: Vance Kelley (Mew's Revenge) $34.89 Kanto Power Mini Tin [Mew] $38.41 V Forces Tin [Mew V] $63.00 Mew V Box Power Partnership Tin [Mewtwo & Mew GX] $835.37 Ancient Mew #1Promo $102.40 Ancient Mew (Japanese Exclusive Print) #1Promo $324.95 Mew #1Promo $467.73 Mew #10Holo Rare $195.41 Mew #111Secret Rare $335.54 Mew #4Rare $103.33 Mew #15Holo Rare $182.59 Mew #10Promo $367.10 Mew #29Holo Rare $13.67 Mew #53Holo Rare $30.16 Centiskorch VMAX #TG15Ultra Rare $9.05 Opal #TG28Ultra Rare $2.49 Kabu #TG26Ultra Rare $1.87 Cook #TG25Ultra Rare $3.10 Spiritomb #TG9Ultra Rare $2.89 Snorlax #TG10Ultra Rare $22.87 Crobat V #TG20Ultra Rare $11.64 Pikachu VMAX (Secret) #TG29Ultra Rare $26.56 Charizard #TG3Ultra Rare $29.84 Adventurer's Discovery #TG23Ultra Rare $4.05

In Legacy, classic MUD strategy was mostly characterized by the presence of the card Metalworker, which we see here