Mew ex #205 (Scarlet & Violet 151, Hyper Rare) If your fifty is burning a hole in your pocket for something modern and flashy, the gold Hyper Rare Mew ex is the mythical heart of the entire 151 set
Granted, this path and the ones involving tokens lean a lot more in the combo direction than the mana acceleration direction, but its definitely worth noting Carnival of Souls capability of being useful outside unreliable 3-4 card loops in these strategies, as it gets a bad rap Im not convinced it fully deserves when reading about its capabilities elsewhere
Incapsula incident ID: 1849000640899307346-757228152022437939
Then you can choose which kind of counter you want to add
He resets the game, when both of us have about ten cards left, with an Armageddon
As soon as one player breaks ranks and refuses to pay their taxes, everyone else follows suit, leading to lots of lovely card draw for you