[2] The book also includes a "de-Eberroned" version of the group patron mechanic[10][11] and of the artificer class and its subclasses,[7] along with reprints of several subclasses that were previously published in other supplements for specific campaign settings: the Order Domain Cleric and Circle of Spores Druid from Guildmasters’ Guide to Ravnica, College of Eloquence Bard and Oath of Glory Paladin from Mythic Odysseys of Theros, and the Bladesinging Wizard from Sword Coast Adventurer’s Guide.

[...] It really has been just about archetype reinforcement, and because it's not there for game balance reasons we give people the option in Tasha's Cauldron to take whatever those bonuses are [...] put them in any ability score you want".

[18][19] In August 2020, Corey Plante, for Inverse, wrote: "All things considered, Tasha’s Cauldron of Everything already feels like a must-buy as the most important D&D book of 2020 that players will be reference for many years to come".

Scott Baird, for Screen Rant, highlighted the slow release schedule of 5th edition Dungeons & Dragons and that "Tasha's Cauldron of Everything might offer some of the biggest additions to the game since it was first launched".

[8] Jon Ryan, for IGN, wrote: "The most noteworthy item is probably the new 'lineage' options, which allow players to adjust the features and ability modifiers traditionally associated with a character's race or species.

[21] James Whitbrook, for Io9, highlighted that this book includes the highest levels of character customization seen in 5th Edition so far with the new rules that would allow players to discard previously "mandated traits and benefits" and "abilities and ideals [...] explicitly linked to racial stereotypes".

Hall criticized these improvements in Tasha's Cauldron of Everything as "extremely weak" and wrote, "My only real disappointment with the book is the way in which it handles optional rules for dealing with the concept of race.

[27] Liam Nolan, for CBR, wrote, "one of the biggest controversies surrounding Dungeons & Dragons has been the game's prescriptivist approach to race and the way it embraces problematic stereotypes.

Orcs, Tiefling, and Drow are archetypically evil races, and their archaic positions within the game reflect and reinforce racist stereotypes in the real world.

[...] For the casual gamer who doesn't follow the minutiae of D&D news, this expansion will provide a lot of freshness to their next campaign, bringing countless more options for building a character.

[30] Hoffer also highlighted the upfront placement of character creation rules in the first chapter which will indicate to players "that Dungeons & Dragons is considering to move away from the game's rather problematic depiction of race".