Its an excellent application of a famed bit of D&D loot, and should be fun to surprise opponents with in a pinch
The deck plays fairly straightforward, playing out creatures and suiting them up with auras/equipment
Apart from the issue of some cards not having playable substitutes, the other reason I tend to dislike this advice is that part of what makes formats like Commander fun is the diversity that they offer, and this diversity is built, in part, on players being able to access and play with weird, old, nostalgic cards that don't really see play in other formats
The sets chase is primarily Booster Fun treatments (Japan Showcase and its premium foils) rather than one single must-open card
Delirium, which first showed up in the two-part Shadows Over Innistrad/Eldritch Moon block, is a mechanic that gives your cards a bonus under the condition you have four or more different card types among cards in your graveyard
Tolkien wrote, the journey doesn't end here