A few years ago, the loophole was closed when the policy was expanded to include never printing these cards in any shape or form that is tournament legal (promos, duel decks, archenemy, etc.) To this day, Wizards hasnt shown any sign of changing the policy, with staunch promises from several high-level employees that the reserved list is here to stay
For two mana, that's already a great investment
Of these, Silverblade Paladin is one of the best since double strike is one of the more powerful keyword abilities
This might just be because it's difficult to build a cascade-themed deck, especially without some of the expensive big-hitters like Rashmi, Eternities Crafter and Maelstrom Wanderer (which were likely too new and too expensive for Commander 2016 ), but the end result is a deck that is vaguely cascade-ish but not a good cascade deck by any stretch