Everybody loves a good tribal beatdown. This cube is designed to be easy to draft for a relatively new player (pick a tribe, slam it, then turn sideways), but still have nuance and complexity that rewards experiences folks.
10 main tribes in two color pairings and 2 in five color, with generous changeling support. Each color pair/tribe also has a minor mechanical subtheme.
WB Vampires - Tokens
RG Wolves/Werewolves - Stompy
WR Soldiers - Tap for value
UG Merfolk - +1/+1 Counters
UB Ninjas - Play opponents stuff
WG Cats - Tokens
UW Spirits - Blink
UR Wizards - Spellslinger
BR Goblins - Sacrifice
BG Elfs - ETB
WUBRG Slivers