Coming out of Bloomburrow, Into the Flood Maw has become the gold standard for efficient interaction
Every non-Core Set since Arabian Nights, released in December 1993, has an expansion symbol, though the changing of the color for rarity didnt start until Exodus, released in June 1998
The idea, at the time, was that we could create some extra layered complexity by having cards that could take advantage of the fact that most creatures have two creature types on them
Shoot, we can even take out a land as long as it's been given a color
Smooth 14pt silk stock is especially popular because it feels sturdy during gameplay while still reproducing detailed artwork, mana symbols, and rules text clearly
Most of them can get evasion (now you see me , and now you dont ) and can raise their power and toughness suddenly and very quickly