Mostly fair, Legacy +, with incidental discard value synergies and combos in most colors. Unfair strategies require higher skill during draft, 3 color decks, and have soft-win conditions reliant on targetable permanents.
Archetypes:W: Tokens, Aggro, Control
U: Permission, Stompy, Blue Things
B: Graveyard Value, Evil Unfair Things, Reanimator
R: Burn, Pyromancer Midrange
G: Ramp, Planeswalkers, Midrange
Azorius: Cheons - Is there Anything Else???
Boros: Value Aggro
Dimir: Reanimator
Golgari: Graveyard Value
Gruul: Monsters Ramp
Izzet: Spellslinger
Orzhov: Control
Rakdos: Midrange
Selesnya: Maverick
Simic: Card Advantage
Grixis: Storm
Naya: Persist
Jund: Jund
Bant: Blink
Esper: Discard Value
Sultai: Reanimator
Actual cards considering:
Unlicensed Hearse
Fable of Keekjeek
Relic of Progenitus
Eternal Scourge
Jugan Defends the Temple
Familiar's Ruse?
Barrin, Tolarian Archmage
Eldrazi Displacer?
Strike it Rich
Increasing Vengeance
Past In Flames
Conflagrate
Malevolent Hermit
cling to dust
ox of agonas
NEO picks:
Eiganjo
Hidetsugu Consumes All
Discover the Impossible
Other recent sets:
Welcoming Vampire
Fell Stinger
Graf Reaver
Sorin the Mirthless
Manaform Hellkite
Chaplain of Alms
Intrepid Adversary
Foul Play
Tovolar's Huntmaster
Liesa, Forgotten Archangel
Zariel, Archduke of Avernus
Long Rest
Prosperous Innkeeper
Sorcerer Class
Culling Ritual
Old Want List:
Conclave Tribunal
Legion's Landing
Liliana Dreadhorde General
Kytheon, Hero of Akros
Hermit of the Natterknolls
Duskwatch Recruiter
Medomai's Prophecy
Sublime Epiphany
Boon of the Wish Giver
Mirror Entity
VERGE RANGERS
Rotting Regisaur
VORACIOUS HYDRA
Hexdrinker
Batterskull
Geralf's Messenger
Hydroid Krasis
Mirari's Wake
Fiend Artisan
Grim Flayer