Other than the pull rates and the icon at the bottom, they look similar to each other, though often the higher rarity cards also include better play mechanics
Being colorless hurts it a bit for this ranking, much like Golden Argosy, but more decks can utilize The Regalia in context
Next time before point fingers, read properly and do your research
Teyo, the Shieldmage Teyo, the Shieldmage is a good card that grants you hexproof for proliferate decks since it only has a minus ability and would come in with 10 loyalty
For those who haven't heard of them before, Tiers order decks of relative power levels into a category, with Tier 1 (or Tier 0 depending on how the list is built) being the strongest, and any higher numbers being the weakest