While Foundations overall isn't the most broken set they've printed this year, there are a few key cards that I think will be worthy of having around as Standard will shift with releases almost every two months over the next year.
Whether youre after a few extra combat steps or want to power up your creatures with counters, we have you covered
The site Pokebeach, which specializes in such matters, stated as early as 31.12.2021: Something is fishy here (via pokebeach)
This is going to include some information such as general themes, synergies, which cards are worth looking at, and what reprints are exciting
If the chosen enchantment is an Aura, you choose what it enchants just before Estrid's Invocation enters the battlefield
This protection helps them stay on the board long enough to turn your small group of tokens into a large army