As for Decimator, uncounterable on your Overrun is very nice against the blue decks

Bounce Duals Also known as: Karoo Duals Azorius Chancery Bounce Duals CI: Dual Color CI: Allied CI: Azorius MP: Dual Colors ETB Tapped Azorius Chancery Bounce Duals CI: Dual Color CI: Allied CI: Azorius MP: Dual Colors ETB Tapped Selesnya Sanctuary Bounce Duals CI: Dual Color CI: Allied CI: Selesnya MP: Dual Colors ETB Tapped Selesnya Sanctuary Bounce Duals CI: Dual Color CI: Allied CI: Selesnya MP: Dual Colors ETB Tapped Dimir Aqueduct Bounce Duals CI: Dual Color CI: Allied CI: Dimir MP: Dual Colors ETB Tapped Dimir Aqueduct Bounce Duals CI: Dual Color CI: Allied CI: Dimir MP: Dual Colors ETB Tapped Rakdos Carnarium Bounce Duals CI: Dual Color CI: Allied CI: Rakdos MP: Dual Colors ETB Tapped Rakdos Carnarium Bounce Duals CI: Dual Color CI: Allied CI: Rakdos MP: Dual Colors ETB Tapped Gruul Turf Bounce Duals CI: Dual Color CI: Allied CI: Gruul MP: Dual Colors ETB Tapped Gruul Turf Bounce Duals CI: Dual Color CI: Allied CI: Gruul MP: Dual Colors ETB Tapped Orzhov Basilica Bounce Duals CI: Dual Color CI: Enemy CI: Orzhov MP: Dual Colors ETB Tapped Orzhov Basilica Bounce Duals CI: Dual Color CI: Enemy CI: Orzhov MP: Dual Colors ETB Tapped Boros Garrison Bounce Duals CI: Dual Color CI: Enemy CI: Boros MP: Dual Colors ETB Tapped Boros Garrison Bounce Duals CI: Dual Color CI: Enemy CI: Boros MP: Dual Colors ETB Tapped Izzet Boilerworks Bounce Duals CI: Dual Color CI: Enemy CI: Izzet MP: Dual Colors ETB Tapped Izzet Boilerworks Bounce Duals CI: Dual Color CI: Enemy CI: Izzet MP: Dual Colors ETB Tapped Simic Growth Chamber Bounce Duals CI: Dual Color CI: Enemy CI: Simic MP: Dual Colors ETB Tapped Simic Growth Chamber Bounce Duals CI: Dual Color CI: Enemy CI: Simic MP: Dual Colors ETB Tapped Golgari Rot Farm Bounce Duals CI: Dual Color CI: Enemy CI: Golgari MP: Dual Colors ETB Tapped Golgari Rot Farm Bounce Duals CI: Dual Color CI: Enemy CI: Golgari MP: Dual Colors ETB Tapped

This ability makes Angus Mackenzie the most optimal commander choice to spearhead a deck of the polarizing "Turbo-Fog" deck archetype, as it can be used to reliably prevent combat damage during each turn rotation and stall games
And then beside discarding you can use stuff like Crucible of Worlds
The alternative commander, Kilo, Apogee Mind, can make stationing Inspirit, Flagship Vessel a breeze , since every time you tap Kilo you can propagate, adding a counter to each permanent that already has one
Best Riot Payoffs I guess the three cards that ended up taking the top spot in my list are the ones that wouldve fit here the best, especially considering riot effects stack