Rebound and Soulfire Grand Master's ability are both replacement effects trying to replace the same event (spell going to graveyard as it resolves), so you get to choose which one to apply.
Tag: Rebound
How Rebound works
Rebound is an ability that appears on some instants and sorceries from Rise of the Eldrazi. Rebound is technically a static ability that generates a replacement effect when the card is a spell on the stack. As long as the Rebound spell was cast from your hand this replacement effect exiles the card instead of […]