mtg card that gives all creatures lifelink : r/mtg Legal in Standard, Rules Text:

Another tip: if youve got a lot of mailers going out, you can write the contents or recipient in marker where the shipping label will eventually go

Also, when you start getting a lot of tokens on the board, you can devour them with the new tokens, making for even bigger creatures in the process

It also works well in a sacrifice deck, because you can sac one of your creatures and still get it back

It might not lead to immediate Mox Opal/Grinding Station wins like it did in Modern, but a Clue a turn for almost no investment can lead to so much, whether thats raw card draw or fueling an artifact payoff like Radiant Lotus