Lets take a look at what we have to play with and find out
Legendary cards are the strongest and most powerful cards in the game, and although they won't break a game, they are still highly coveted for ambitious competition
The attack trigger could kill someone before blockers are ever declared (which means thats the right direction to send the Commissar)
The finishing blow was then usually dealt with Become Immense or Temur Battle Rage
Theres a similar effect on Reluctant Role Model , except that it moves counters directly onto a creature when one dies, and generates +1/+1, lifelink, and flying counters
Auction house PWCC claimed it was the first time that a signed Lorcana card had been offered at public auction - with only a few of the first-edition cards autographed by the games creators at that time - reflected in its eventual sale price of $1,620