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The rules are weirdly slippery on what a "solid surface" is.
Note that several "Wall of X" spells (ice, thorns, force) use similar language, as do monster attacks that create walls of stuff.
请注意,几个“墙上的X”法术(冰,荆棘,力量)使用类似的语言,怪物攻击也会产生相似的语言。
There are several cases of rules text using "solid surface" and "creature" as if they're distinct, which would imply that the surface can't be part of a creature. What makes it less clear is that the effect is usually the same either way, so "creature or solid surface" could just be inclusive language.
有几种规则文本使用“固体表面”和“生物”就好像它们是不同的,这意味着表面不能成为生物的一部分。不太清楚的是,效果通常是相同的,因此“生物或固体表面”可能只是包容性语言。
For example, the Otyugh can bash creatures "into each other or a solid surface", for the same amount of damage.
例如,对于相同数量的伤害,Otyugh可以将生物“打入彼此或”固体表面“。
The catapult spell hurls an object in a straight line, "stopping early if it impacts against a solid surface." But if it would hit a creature, and the creature fails its Dex save, "the object strikes the target and stops moving."
弹射器法术将物体直线投掷,“如果撞击固体表面,则提前停止。”但如果它击中了一个生物,并且该生物未能通过它的Dex保存,“该物体击中目标并停止移动。”
You can break a Staff of the Magi "over your knee or against a solid surface"; the effect is the same, including the damage that you take for being in the center of the blast.
你可以“在膝盖上或坚固的表面上打破魔法师的职员”;效果是一样的,包括你在爆炸中心受到的伤害。
Melf's minute meteors is a tricky case. The meteor can be directed at a point you choose; it explodes when it "reaches its destination or impacts against a solid surface". This has a small functional effect: the meteors otherwise don't respect cover, so if a creature doesn't count as a "solid surface" then hiding under a big creature won't protect you from meteors coming down from above. Common sense says that it should protect you, so I lean toward "solid surface" being inclusive of creatures in this case.
Melf的分钟流星是一个棘手的案例。流星可以指向你选择的点;当它“到达目的地或撞击坚固的表面”时会爆炸。这有一个小的功能效果:流星否则不尊重覆盖,所以如果一个生物不算作“坚实的表面”,那么藏在一个大生物下将不会保护你免受从上面下来的流星的影响。常识说它应该保护你,因此在这种情况下我倾向于“固体表面”包含生物。
So how do you rule on this?
One additional issue for the Wall spells is that "solid" implies that the surface isn't going to change shape during the duration of the spell. This matters mostly for Ice and Thorns, because they're rigid. If you cast a Wall of Ice on the back of a dragon, can the dragon shake it off? Does the wall flex as the dragon moves or does it splint the dragon in place? What happens if it tries to fly?
Wall法术的另一个问题是“固体”意味着在法术持续期间表面不会改变形状。这对冰和荆棘来说很重要,因为它们很僵硬。如果你在龙的背面投下了一面冰墙,龙可以将它甩掉吗?当龙移动时,墙壁会弯曲还是将龙夹在原地?如果它试图飞行会发生什么?
Another is that some of the walls do damage; if you allow a Wall of Fire to stick to a creature then that's 5d8 fire damage per turn, no save, for 10 turns.
另一个是一些墙壁造成损坏;如果你允许一道火焰墙坚持一个生物,那么每回合造成5d8点火焰伤害,没有保存,持续10回合。
Allowing walls to be used this way would introduce a lot of complexity that you might or might not want to deal with.
允许以这种方式使用墙将引入许多您可能或可能不想处理的复杂性。