Scenario
Prism has a spectral shield and a Merciless Retribution on the board and both her and the opponent have 1 hp.
A large attack is hitting Prism in 1 damage instance(f.x. a Swing Big) and dealing leathal damage.
The Spectral shield token is of course preventing one and therefore beeing destroyed and Merciful retribution is pinging the opponent.
How is this ruled?
Since it is one damage instance I am unsure and could imagine all 3 out outcomes(Prism win, Prism loss, draw)