Executioner's Capsule might be worth making room for since you can use it any number of times thanks to Glissa.

zelous666 yeah companions aren't very intuitive and it doesn't help that the original printings are worded differently. thanks dude

zelous666 they changed the way companion works a while back. It reads like this now:

So you pay 3 to put the companion into your hand first rather than playing it from outside the game.

This is a great list but I think you need more lands and mana rocks. Also just a heads up that transforming cards like Ojer Taq cannot be played as their transformed side; you would have to play it as a creature first and transform it before using it as a land.

Personally I would make these swaps:

Second Breakfast -> Windbrisk Heights
Vizier of Deferment -> Shefet Dunes
Ajani, Inspiring Leader -> Bonders' Enclave
Transmutation Font -> Arch of Orazca
Fortifying Provisions -> Fountainport
Bill the Pony -> Minas Tirith
Drannith Magistrate -> Manakin
Flaming Fist Officer -> Hedron Crawler
Odric, Master Tactician -> Gold Myr
Oltec Matterweaver -> Ornithopter of Paradise
Syr Ginger, the Meal Ender -> Mind Stone
Thraben Doomsayer -> Coat of Arms
Gingerbrute -> White Plume Adventurer
Food Coma -> Magewright's Stone
Hobbit's Sting -> Drumbellower
Dawn Charm -> Halo Fountain

Maybe toss Road / Ruin in there?

I really dig your intention to focus on Progenitus as the win-con. Personally I would swap out some of the "goodstuff" and tune the list more toward getting Prog out early. If you play a dork T1, a 3-cmc rock that can generate 2 mana on later turns e.g. Coalition Relic/Component Pouch/the "__ of Ramos" rocks on T2, and follow those up with a couple more ramp pieces that create 2+ mana, you can consistently get Prog out on turn 5. Then T6 could be dedicated to giving him double strike/double power and +1 to his power so you can start taking out opponents. You also wouldn't need removal with a strategy like this since you can just remove the player that controls the worst threats.

Personally I would make these swaps:

Pyrohemia -> Utopia Sprawl (you'd ideally run fetch lands so that this will always have a target, e.g. Marsh Flats into Temple Garden)
Squall line -> Deathrite Shaman (also wants fetches to be effective)
Greenseeker -> Avacyn's Pilgrim
Vraska, Relic Seeker -> Elves of Deep Shadow
Sylvan Ranger -> Sakura-Tribe Scout
Curse of the Swine -> Skyshroud Ranger
Hull Breach -> Hunting Wilds (can find nonbasic forests like Stomping Ground)
Magus of the Mirror -> Skyshroud Claim
Pongify -> Dawn's Reflection
Rapid Hybridization -> Berserkers' Onslaught
Chaos Warp -> Firemind Vessel
Generous Gift -> Relic of Sauron
Path to Exile -> Prismatic Geoscope
Blasphemous Edict -> Timeless Lotus

dang fam your bio goes hard

Sure but since any shortcut system they use is acceptable, Obeka's opponents do not need to agree to the fragmented loop shortcut system and are not forced by the rules to end their turn during any particular iteration of Obeka's ability resolving. Thus if the Obeka controller continues to take actions that execute the loop, the only formal rules that could apply would be tournament guidelines regarding slow play.

But Rhadamanthus, the shortcut rules are informal:

729.1a The rules for taking shortcuts are largely informal. As long as each player in the game understands the intent of each other player, any shortcut system they use is acceptable.

The procedure you laid out does not need to be accepted or followed.