With good planning, you could keep Mew alive despite its low health, and within a couple turns you'd be able to completely wipe out your opponents bench
If you happened to jump on the Pokmon card game bandwagon back at the turn of the millennium, then you might have one or two of these ultra-valuable cards pressed between the pages of a Highlights magazine somewhere
Card Set(s) -The Three Brothers-[ST13] CARD VIEW ST13-016 | C | CHARACTER Yamato Attribute Strike Block icon 2 Effect [Rush] (This card can attack on the turn in which it is played.) [On Play] Look at all your Life cards
Comparing booster to booster, this is by far the coolest, but they cost a lot more
It also has cumulative upkeep (1), meaning at the beginning of your upkeep, you put an age counter on Ancestral Knowledge and then have to pay the cost for each age counter on it
for example, creatures your opponents must block, like Jurin, Leading the Charge, or cards that only allow one creature to block, like Vorrac Battlehorns