Yes, this is correct. You commander land does have commander tax, exactly for this reason. Also, you would probably not want to play a fetch land as your commander land because you need to use mana from you commander land to cast your other commander.
The reasons you would play it over commander is
A) You can have a land as your commander, which is very fun. B) You can use planeswalkers as commanders. C) It is much faster than commander. D) It is 80 cards and 30 life, which is not seen in very many other formats. E) It is more focused on 1v1, vs commander which is a 4 player format.
I would recommend you making a deck and trying it out with a friend, see how you like it.
Some of my friends and I came up with a new format, and I would like to see what people think of it.
So, in this format, you have 2 commanders: A non-basic land and a legendary creature or planeswalker. Decks are 80 cards including the land and planeswalker/creature. You must use at least one mana from your commander land to cast your commander creature/planeswalker. You start with 30 life. Like commander, this is a singleton format as well. Your commander land does not count as your one land per turn, and does have normal commander tax. Your commander land also must be within the color identity of the legendary creature/planeswalker. Your legendary creature/planeswalker sets the color identity for the rest of the cards in the deck. There are sideboards (normal 15 cards, singleton rules apply), same with companions.
A) You can have a land as your commander, which is very fun. B) You can use planeswalkers as commanders. C) It is much faster than commander. D) It is 80 cards and 30 life, which is not seen in very many other formats. E) It is more focused on 1v1, vs commander which is a 4 player format.
I would recommend you making a deck and trying it out with a friend, see how you like it.
So, in this format, you have 2 commanders: A non-basic land and a legendary creature or planeswalker. Decks are 80 cards including the land and planeswalker/creature. You must use at least one mana from your commander land to cast your commander creature/planeswalker. You start with 30 life. Like commander, this is a singleton format as well. Your commander land does not count as your one land per turn, and does have normal commander tax. Your commander land also must be within the color identity of the legendary creature/planeswalker. Your legendary creature/planeswalker sets the color identity for the rest of the cards in the deck. There are sideboards (normal 15 cards, singleton rules apply), same with companions.
For the ban/restricted list, the link is here: https://tappedout.net/mtg-decks/oakland-highlander-banrestricted-list-deck/?cb=1588563627
Cards on the ban list are banned and cannot be played anywhere. the cards on the restricted list cannot be your commander. These are all lands.
I was thinking about having the name be Oakland highlander, mainly because it originated in Oakland.
Example deck:
https://tappedout.net/mtg-decks/emrakul-eons-torn-oak/?cb=1588718119
Thank you, please feel free to ask questions or leave suggestions!