For example, an opponent who gained 2 life and lost 1 life in the same turn still lost life
The most common opening hand sizes I believe are five, seven and thirteen
Sure, it's more limited than Enchantments like Mesa Enchantress above, but with three options, you have three deck types he can lead - Equipment, Auras and Enchantments are all in the top 15 archetypes
Unless you have additional synergies with Clues, they arent the best payoffs since you need to pay two mana to use them
If we drop Demonic Tutor, Channel, and Natural Order, the average cost of a mythic Mystical Archive drops to $10.21, slightly cheaper than Arena 's $10.71 average cost
And you can't punch someone for two damage, (and that wouldn't matter as much in a 40 life format anyway.) Hence, the Fire Imp isn't as good today as it once was