我怎么觉得你们的解释都有问题- -
简要的说你当然可以偷袭->-4d6伤害->下次继续偷袭并且再减4d6伤害->继续偷袭再减,不过这个的前提是每次都得命中才行
至于针对免疫偷袭的生物,ambush feat的规则里写的很清楚,and your sneak
attack must deal at least one extra die of damage (that
is, you can’t reduce the number of extra damage dice
to zero).
此外
Creatures immune to extra damage from sneak
attacks are also immune to the secondary effects
created by ambush feats. Even if a creature is
vulnerable to sneak attacks, if your attack deals
no damage to the creature (for example, if it is
negated by the creature’s damage reduction), the
secondary effect doesn’t occur.
换言之,针对免疫偷袭的生物,对方本来就不受sneak attack伤害,所以也就不能应用这个feat。
另外,专长原文和你贴的翻译之间有一个小差别
Benefit: If your sneak attack hits, your first attack
against that creature on your next turn is also considered
a sneak attack even if it wouldn’t normally qualify.
Using this feat reduces your first sneak attack’s damage
by 4d6. The resulting second sneak attack deals its full
extra damage.
注意那个your first attack against that creature on your next turn部分。。所以想拿这个搞全回合偷袭的就去死吧。。