It is no longer a case of pick up the cards that give life and that you want in your deck, obviously you do that, but it is not always enough or you do not see the few cards that fit this criteria
Land Color tag templates(None) Color tag templates(None) Plains Basic Land - Plains Color tag templates(None) Polluted Delta , Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle
Several cards care about the number of Allies you control or Allies entering, so focus on going wide with cards like White-Black Sacrifice If you'd rather use your creatures for more macabre abilities, then the white-black sacrifice archetype is for you
Put four Basic Pokemon into play
However, I realized that, while The Water Crystal was a great card, it felt very underwhelming in this build
I went and checked to see if there were any left at my local Target