Shadows over Innistrad Promos · PSOI · rare
Sorcery
wotc · 2016-04-08
The damaged creature will be exiled if it would die for any reason that turn, not just if it dies due to damage from Burn from Within.
wotc · 2016-04-08
If Burn from Within doesn’t deal damage to the target creature (perhaps because that damage was prevented or X is 0), neither additional effect will apply. It won’t lose indestructible, and it won’t be exiled instead of dying that turn.
wotc · 2016-04-08
You can target a creature that doesn’t have indestructible with Burn from Within. It will still be exiled if it would die this turn.