About This Team Comp
The core concept is to run two 8 Bit with 3 Edgelords in early / mid game. You want to push for Level 7 in either Stage 3-5 if you're coming from a lose streak or in 4-1. Here you can field four 8-Bit with 3 Edgelords and 3 Pentakill, while you are slow rolling for Riven*3 (and Morde*3 if game allows it).
Once you have her you can push for Level 8, upgrade Viego and cap out your board with Kayn and 5 Edgelords. If you find an 8-Bit Emblem you can give it to Viego and aim for vertical 8 Bit and the big Prize cashout as your win condition.
Riven/Viego Edgelords
Team Carries
Recommended Augments
stage 2
Best Opener is 3 Edgelord with 8 Bit and an early Riven so you can start stacking the trait early on.
stage 3
Depending on your Headliner your setup for Stage 3 can look different. 5 Edgelords is the most common one, but if you get lucky with 8 Bit Riven Headliner, you can also add Corki instead. Can also run Ekko over Mordekaiser as your mid game tank to activate True Damage with Yasuo.
stage 4
Should be Level 7 in Stage 4-1 and have Riven Headliner. With 8 Bit Headliner you can kick Corki once you find Caitlyn. With Edgelord Headliner you want to run Yone for 5 Edgelords as your power spike. Slow roll for Riven*3 and push for Level 8 once you find her.
stage 5+
Push for Level 8 and add remaining Edgelords or Yone depending on your setup. Set up Viego as your secondary carry and give leftover AP items to Kayn.
Alternative Item Builds
8 Bit Emblem is very strong on Viego. Riven usually runs a combination of sustain (Bt/HoJ) with dmg (gs/inf/titan) and a Quicksilver for protection.
Thanks again!