As described on Burn from the inside, there's normally an efficient creature removal spell. This can hit most creatures, albeit a moment too late, with the exception of small utility non-ping creatures that don't go into combat, but they normally have low enough toughness a 2 or 3 burn spell will be enough for them.

Like it. Don't like trying to wrap my brain around using it on a prodigal sorcerer.

­:) I could say "dealt damage to a creature or player" although that would be synonymous or "to you or a creature you control" although that feels much less red if it seems simpler.