Reload for more, or save this webpage and use anywhere, on a server or locally. It's self-contained. This version adds items from Tasha's Cauldron of Everything, Fire on the Velvet Horizon, and The Vault of Magic. It also adds spells from TCE, the Feast of Bukako, and Wonder & Wickedness. It removes the old summoning spells from the PHB in favor of the summoning spells in TCE.
Here is the original version, which only uses items from Blackball’s Treasure, i.e. from the 5e DMG and XGE, and spells from the PHB. I have done a quick and dirty first pass at assigning the new items into Blackball's tiers on my own.