Rivaz is about as good a support card as you can get for a Dragon deck
Most of the things I said made Devastation at all bearable are no longer present in this entry
The Lost Caverns of Ixalan Blood Rites Commander Deck includes 1 White-Black deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 2 alt-border cards, with 1 Traditional Foil or nonfoil card of rarity Rare or higher and 1 Traditional Foil Uncommon card), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card.
They got damaged over time by humidity or other external effects, simply because nobody knew the cards would get this valuable
Theres a reason I didnt do some big list of all the playable legendary creatures in Standard earlier