Given that, I dont think this assassin will come together every time you go for it, and if you ever fall short of the 10 poison you need, itll feel really bad
Ankh of Mishra Mishra Mishra's Bauble Mishra's Command Mishra's Domination Mishra's Factory Mishra's Foundry Mishra's Groundbreaker Mishra's Helix Mishra's Juggernaut Mishra's Onslaught Mishra's Research Desk Mishra's Self-Replicator Mishra's War Machine Mishra's Workshop Mishra, Artificer Prodigy Mishra, Claimed by Gix Mishra, Eminent One Mishra, Excavation Prodigy Mishra, Lost to Phyrexia Mishra, Tamer of Mak Fawa
and I'm prioritizing instant speed protection options in this build
But for a card like Shadow of the Grave, if you previously discarded an instant but chose to play it with madness and only then did it go into your graveyard, it doesnt count as discarded for the effect
Firebending creates temporary red mana during combat, giving you a sudden burst of extra fuel for instant-speed shenanigans
Menace, haste and solid toughness make it highly likely Satya will be impactful as soon as he arrives on the battlefield, so I suspect he wont end up feeling like a slow commander regardless of cost