Warden of the First Tree is another new card with life gain potential that has been performing fairly well but is a bit narrow and far too costly and vulnerable to be relied on as life gain
Aether Helix is a card Im excited to get to play with
But the prices climbed even higher
(It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.") , Sacrifice this creature: Target creature gets -X/-X until end of turn, where X is twice the number of Blood tokens you control
The type is usually a basic land type, like Swampwalk, but can also be a supertype, like legendary landwalk on Livonya Silone
Other times, you slow down and hold interaction like Force of Will or Fierce Guardianship and wait for the perfect opening