This is because in addition to paying the life for a card, you also essentially have to pay one mana, since this enchants a land and you have to tap the land to get the effect
Instead, it's the fact that it allows the player to draw two cards when an equipped creature dies that pushes it over the top The potential card advantage is unreasonable for a single mana investment, especially since the -1 to Toughness makes it extremely easy for the player to kill their own creatures on command
A timely Curious Herd is an incredible token generator, and the Twinning Staff helps turn your deck into a Xerox for instants
Final Fantasy Garland at the Chaos Shrine Final Fantasy VIII Children of Fate Final Fantasy XI The Siege of Alexandria Final Fantasy XV Camp Comrades Moving sharply up in price tag, the MTG Final Fantasy Chocobo Bundle offers a lot for your money
If you have more than one commander (because of a partner ability, for example), you choose one of your commanders when the ability resolves to determine how much damage the ability deals