Extremely popular in Commander since printed in Commander Legends: Battle for Baldur's Gate , Black Market Connections provides two of the most straightforward ways to gain card advantage: either by directly getting cards in your hand, or by slamming extra cardboard on the table
We can play cards like Pond Prophet, Aether Channeler, and Solemn Simulacrum early in the game for value and then eventually stick Y'shtola Rhul to blink them (twice!) on our end step to reuse their enters abilities
The Fifth Doctor sacrifices himself to save Peri, but regenerates at the end
Lorcana Holographic Cards The Lorcana Holo cards are something to bling your deck and serve as collectable items all at once
Thats mostly rounding and manufacturing tolerance, not a conspiracy
Ox of Agonas and its ability to discard your whole hand is a huge nombo with Conflagrate