Knife Wall is a legendary major card out of the New mechanic pool. Knife Toss knives fly 5 u, then hang in the air for 1 s as a blade that cuts anything standing in it.

You can take it once · it only turns up when your Main ability can actually use it · it can be offered for 0 of the 34 abilities.

Only one card can reshape that ability this way — this one, or Ricochet and Knife Storm. Take one and the rest are gone for the run.