I need to clarify, which I didn't do enough of (and violation of forum rules). Set is not for newbies per se, rather it is revising and bringing the classic Beta set up to speed by making all the cards at least playable in but in the same vein.
Ok, not designing for newbies then

. In terms of power level and coolness:
1) See previous answer.
2) Traveller's Cloak
3) Animate Dead (Dance's oracle text is just too messy)
When Dance of the Dead comes into play, if it's in play, it becomes an enchant creature. Put target creature card from a graveyard into play tapped under your control enchanted by Dance of the Dead.
Enchanted creature gets +1/+1 and doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player may pay 1B. If he or she does, untap that creature.
When Dance of the Dead leaves play, destroy enchanted creature. It can't be regenerated.Dance is cluttered where Animate Dead is... a little less cluttered. I'd still rather see a simple effect like Zombify in that slot, but if you insist then I choose the lesser of two evils in the form of Animate Dead
4) Shield of the Ages is IMO the most abusable card there - it could be used in a big-mana deck in a similar way to W/R Astral Slide
(In that deck the presence of a Slide on the board forced aggro players to overcommit to the table if they wanted to deal any damage. That left them open to Slide's many Wrath effects.)5) Nantuko Shade is a ridiculous creature where Looming Shade is mediocre. The deck that likes these guys will be mono-black anyway, so there seems no reason want Looming Shade's less B-intensive mana cost.
6) Nefarious Lich seems a little less bad.
7) Again, I don't like either card. I guess Maddening Imp given there are no other options.
8) Silverback - it's miles stronger for constructed IMO.