Path of Bravery incentivizes getting in every now and then, and a few Ajani activations or Archangel of Thune counters and suddenly you have a lethal sheep on your hands
These command five-figure prices on the secondary market
The Pokmon Company probably had bigger Magikarp to fry with the new Pokmon games on the newer system and left the last Pokmon game on the Game Boy Color to become lost in obscurity
Some forces have pushed constructed Magic towards greater consistency, including, but not limited to, the mulligan rules (and especially the London mulligan), the massively expanded card pool with many functional variants or copies of existing cards, and the greater efficiency of deck manipulation (especially with the advent of cantrips and fetchlands)
Sun & Moon Era (20172019) The Sun & Moon era kicked off with a tropical twist and big mechanical shake-ups
Its essentially a reusable Rampant Growth that gains you life