This is a fairly standard vintage cube stock list with some adjustments for personal taste.

Common archetypes to look out for when drafting:

R/W and R/B Aggro
Green-based Ramp
UB Control
Reanimator (Primarily in Black and can easily splash other colors)
U/R/B Cheaty (Sneak Attack, Show and Tell, Through the Breach to cheat in a big creature quickly.)
U Artifacts

Some combos/cards of note for newer players:

Flash + (Vaultborn Tyrant/Worldspine Wurm/Torsten, Founder of Benalia/Woodfall Primus/etc.) = Spend 2 mana to have a big creature enter the battlefield and die, triggering both its Enters and Dies effects for huge value.

Dark Depths + (Thespian Stage/Vampire Hexmage) = Make a very cheap, instant-speed 20/20 Flying Indestructible Marit Lage

Underworld Breach + Brain Freeze + (Black Lotus/Lion's Eye Diamond/Some others I can't remember rn) = Repeatedly cast a 0-mana artifact from the graveyard and recast Brain Freeze to mill yourself, then with a high enough storm count mill your opponent's deck in one shot.

Thopter Foundry + Sword of the Meek = Spend one mana to sacrifice sword to thopter foundry, make a 1/1 thopter and gain a life, get the sword back and repeat.