Blink
Go straight to Value-town by abusing powerful "Enter the battlefield" abilities over and over and over and over. Look for cards that exile/bring back and also creatures with strong enter the battlefield abilities.
Ninjas
Use cheap yet difficult to block creatures to open opportunities for your ninjas to sneak in. Control the opponent's board to make way for your attacks.
Discard
Throw away your hand over and over to gain access to powerful spells then refill your hand to do it again.
Sacrifice
Sacrifice your own creatures, bring them back from the graveyard, then sacrifice them again!
Lands
Sacrifice and discard your lands then play them from the graveyard. Or be brave enough to branch into a 5 color deck.
Artifacts / Spells
Use instants, sorceries, and artifacts to create a powerful army and deal direct damage to your opponent.
Graveyard
Throw your deck straight into the graveyard and use that as your hand instead. If a card hasn't been exiled, you can find a way to get it back. Build up a deck that brings your creatures back, or one that focuses on spells, the graveyard strategies can expand to cover a lot in this cube.
My suggestions:
The archetypes are made to generally fit together, so feel free to mix and match. Ninjas and blink can work well together. Discard pairs well with graveyard strategies, etc.
Keep an eye out for these cards during the draft, they're objectively the most powerful cards here. If played well, they can turn games around by themselves. You don't need to immediately pick them, but if they're in your colors already, it's probably worth a second look during the draft. Some of these cards are unbeatable in value per mana spent, some are more complex but with amazing payoffs.