Oversoul
The Tentacled One
I'm going to push for this to be banned in my playgroup. It's nothing short of insane just how many broken decks this has created. At only 2U to play, it can hit the board very early, and it's too easy to generate a constant supply of land to pay the upkeep for several turns, far too long for most opponents to handle. It becomes even more powerful in late game, generating large amounts of mana, especially in combination with any bounce spells like Boomerang or Capsize. It is easy to turn other lands into Snow-Covered Islands or even put out a few extras. When these factors are combined with enchantments that have cumulative upkeeps, like Mystic Remora and Illusionary Forces, it causes very degenerative gameplay...