For Blessing of Frost to work its magic, you want to be playing cheap creatures with power and sizeable three-drops, trying to close the game quickly, and only playing basic lands or Faceless Haven
More than 20 years later, it's still terrible to pay six for a 3/3 that can't trigger in Commander, and lets your opponent choose if you get a restrictive Raise Dead out of it
8 War Room Price $2.85 In colorless decks, War Room essentially reads "pay three generic mana, tap, draw a card." That's good--very good
Understanding how they work can mean the difference between winning and losing a close match
Morph 4RR (You may cast this card face down as a 2/2 creature for 3
The main weakness of the Amber/Ruby deck is just how expensive some of these cards can be