My opponent had Champion of the Weird and used the card's ability on their turn to force me to Blight 2, putting -1/-1 counters on my creatures.

I had Lasting Tarfire in play.

Lasting Tarfire says at the beginning of EACH end step, deal 2 damage to opponent if I put counters on my creatures. This effect did not trigger at the beginning of my opponent's endstep.

This was my final loss on the sealed event, and I think the game would have had a different outcome if the Lasting Tarfire dealt the damage I think it should have.

Very disappointed on an otherwise very fun set.