Every Commander that makes this chart fits into one of three places: Reserved Cards from Legends Due to cards from the first sets having low print runs, these cards have a very, very low print run which drives up their price
So dont support these guys, dont buy counterfeit cards
Undying, on the other hand, sees that the creature has a +1/+1 counter and doesnt trigger since the creature doesnt meet its restrictions
Queen's Agent Retrieval Agent Shardless Agent Shaun & Rebecca, Agents Sleeper Agent Spider-Woman, Secret Agent Tezzeret, Agent of Bolas Thoughtcutter Agent U.S.Agent, John Walker Unscrupulous Agent Vectis Agents Whisper Agent White Widow, Free Agent Wingshield Agent Xantcha, Sleeper Agent
One of the most important is Mulan, Imperial Soldier, a character from The First Chapter who never really found a place in the meta, but finally comes to her own in challenge-focused decks
Meanwhile, Snake-Eyes Diabellstar has an ability while in the spell and trap card zone
