In those two previous articles, only one enchantment was mentioned: An-Zerrin Ruins
Attacking with Dragons draws you cards and can drop extra permanents for free, so combat turns into a steady stream of value instead of swing and pass. Focus heavily on early ramp and color fixing so the cost reduction matters as early as possible
Teferi's Protection, Exploration, Mana Crypt, Revel in Riches, and Cryptic Command are just a few examples of cards - pulled right off the top of my head - that any random grouping of Commander players would, by and large, agree are "good"
Ancient Silver Dragon Body of Knowledge Choice of Fortunes Chronatog Avatar Curiosity Crafter Decanter of Endless Water Enter the Infinite Finale of Revelation Graceful Adept Kruphix, God of Horizons Library of Leng Marina Vendrell's Grimoire Mordenkainen Morska, Undersea Sleuth Ms
Even better, 1 in 20 art cards opened are gold stamped with an artist's signature or Planeswalker symbol