This is a peasant cube built mainly from cards I already own, Being peasant, the cube is designed to play a little slower and more grindy, similar to retail limited. I did focus on pushing aggro in mono red and white but the other colors don't support an all-in aggro deck.
This list does include the persist combo in all colors except blue with a sac outlet, a +1/+1 counter giver, and Murderous Redcap or Kitchen Finks. There is also the combo of Scurry Oak or Herd Baloth and Ivy Lane Denizen or Rosie Cotton of South Lane. Both of these combos require multiple creatures and are expensive so they should require at least 2 turns or a lot of mana to set up. It is intentional that none of these combos require blue, so that the combo decks loose out on mana consistency if they want the counterspells and card selection from blue.
Some non-infinite combos included are Oketra's Monument with Kor Skyfisher / Whitemane Lion, and reanimator with large game-winning creatures in most colors.
The themes are somewhat loose for most of the color pairs to have flexibility.
Azorius - Blink / Flying
Dimir - Self Mill / Control
Rakdos - Sacrifice
Gruul - Ramp / Big Creatures
Selesnia - +1/+1 Counters
Orzhov - Creature Token Sacrifice
Izzet - Spellslinger
Golgari - Graveyard
Boros - Go Wide / Aggro
Simic - Ramp / Landfall
Some build around cards include:
Shadowfax, Lord of Horses
Essence Reliquary
Oketra's Monument
Spider Spawning
Up the Beanstalk
Sling-gang Lieutenant
Spelunking
and more