Token strategies with cards like Legion Warboss can maximize this to end games in a single turn
Its like Kor Haven, but repeatable, and you can use it to save opposing players from damage in order to keep them alive to use them as a resource
Whether youre pulling from Collector Boosters or just buying the decks, its worthwhile knowing whats what
Starn has a static ability that reads "Whenever another source you control deals exactly 1 damage to a permanent or player, Ghyrson Starn, Kelermorph deals 2 damage to that permanent or player"
Even if your attacker isnt taking prizes each time it attacks, it may not necessarily be a loser in the prize race
But Curiosity or Tandem Lookout go infinite with Niv-Mizzet, Parun and you can kill everyone at the table as long as you dont deck yourself