Coupled with the fact you can play it as your commander and get value if people try and target you makes Limited Resources Locking each player to five lands forever is extremely constraining and not that much fun, all for a single mana
But token commanders often deploy token doublers like Mondrak, Glory Dominus and Parallel Lives to amass gigantic board states, so the ceilings quite high
Emet-Selch is a dastardly creature because not only does he reduce the cost of Spells you cast from your graveyard, he also just lets you cast spells from your yard whenever your opponents have lost life
(6/23/2020) In a multiplayer game, Chandra's Incinerator counts damage dealt to opponents who have lost the game.
I'm sure this reminds you of Sylvan Caryatid, and they both have the same total power + toughness of 3 for two mana
Mishra's Bauble, one of the best eggs in Magic, isnt as broken, but being a 0-mana cantrip (even if the card draw is delayed) makes it a mainstay in Vintage and Modern