A long long time ago a in playtesting one of the group brought along a deck where he was using Swamps to proxy for Wrath of Gods
Tidus second ability allows us to draw a card and proliferate whenever one or more creatures we control with counters on them deal combat damage to a player. Unfortunately, were limited to doing this once a turn, but if youve ever played against an Atraxa, Praetors Voice deck, then you know just how busted getting a free proliferate every turn can be
When the player uses Thundershock, they can flip a coin
Circle Undone: This cycle is probably my favourite after Carcosa, and might even edge into the number one spot
But even if it hadnt had the head-start, this is an incredible new tool that will likely be slotted into thousands of decks thanks to its protection, treasure generation, and spell copying