Originally Posted by WizKid
Mind explaining how it interacts with dragon flame then? Im also wondering was there an errata to the card?
Four Tails got an errata because it used an errant 'would' which is usually attributed to a replacement effect, but didn't have the 'instead' that verifies such a thing. The 'would' was dropped from both effects, making it an optional triggered effect, which is always was to begin with.
I was told that the perceived ruling was that Four Tails would trigger in response to Dragon Flame just being played on a Tailed Beast, even though the damage had not even been applied yet. A card cannot anticipate an action in the game, as the damage isn't even possibly happening due to other factors such as the jutsu being negated and such.
As Four Tails is now, his effect is a triggered effect, which means his second effect is very fragile, as he is neither Valid, nor would that effect successfully resolve if he was the one removed from play.