Blood Moon is a card that you either hate or love, and there's no in-between
Charizard ex, the third 'face' of Pokmon TCG Pocket's first set Genetic Apex, took first place for the first time, but more interestingly, a brand new deck graced the scene, with a Water-type Greninja list securing the bronze medal
The kicker costs offset the life loss a little bit, but this sort of Dark Confidant style of card advantage tends not to work out well in Commander unless youre gaining tons of life or manipulating your library somehow
And by combining Unfair Stamp with already-released options such as Bosss Orders or Eri, you have extremely powerful methods to turn the tide of the match, either landing a knockout on a weak Pokmon or shredding the options in their hand
I recommend playing two colors
With the right combination of cards, lands can generate more mana, endless card draw and even an army of big beaters to overrun your opponents with