Yes, granting a creature hexproof will stop a targeted fight spell from resolving , since fight spells or abilities need to target the two creatures involved
That said, I could see running more for example, if your deck goes all-in on the commander, you could potentially run as many as 10 protective spells
"Magic the Gathering TCG: Duskmourn House of Horror Commander Deck Set of 4" falls under the category of Collectible Card Games.
As long as the tokens are being created under your control, Chatterang's replacement effect will apply
There are plenty of other cards that let the player venture, including Nadaar, Selfless Paladin
All these cards have relatively high casting costs, probably by design, and this one is particularly steep