Simic can get card advantage while the others have a semblance of pressure and damage, but other facets make them unique and widely applicable to their particular guild
This removes any guesswork for potential buyers and often increases the card's value
The best thing about an effect like Feast of Sanity or Glint-Horn Buccaneer is they broaden our focus from effects that let us discard for profit to just effects that let us discard. This opens the door wide to generically powerful, consistency-enhancing effects like cycling, looting, windfalls and of course, wheels
You want creatures with mana value 6 or greater, preferably sea monsters, to turn Runo into Krothuss, Lord of the Deep and start creating copies of those monsters
A lot of us were skeptical, but playtesting showed that Randy's hypothesis was correct
In fact, should this list stay up for years to come, Lost Origin may well and truly feel lost to the sands of time - but good art is timeless, and few card games know that better than Pokemon's