协助他人是否可以造成重击威胁

[厄运锦鲤]

协助他人的描述是一个近战攻击检定，这个攻击检定是否可以造成重击威胁呢？
如果可以是否可以在利用彩蝶毒蛰将这个重击转移出去？
彩蝶毒蛰描述的“你的此次攻击造成普通伤害”如果对应一次没有伤害的攻击会导致专长无效吗？

劇透 -   :

Aid Another
Source PRPG Core Rulebook pg. 197
In melee combat, you can help a friend attack or defend by distracting or interfering with an opponent. If you’re in position to make a melee attack on an opponent that is engaging a friend in melee combat, you can attempt to aid your friend as a standard action. You make an attack roll against AC 10. If you succeed, your friend gains either a +2 bonus on his next attack roll against that opponent or a +2 bonus to AC against that opponent’s next attack (your choice), as long as that attack comes before the beginning of your next turn. Multiple characters can aid the same friend, and similar bonuses stack.

You can also use this standard action to help a friend in other ways, such as when he is affected by a spell, or to assist another character’s skill check.

劇透 -   :

Butterfly's Sting (Combat)
Source Inner Sea Gods pg. 208, Faiths of Purity pg. 24
You can forgo a critical hit in order to pass it on to an ally.

Prerequisites: Combat Expertise, worshiper of Desna.

Benefit: When you confirm a critical hit against a creature, you can choose to forgo the effect of the critical hit and grant a critical hit to the next ally who hits that creature with a melee attack before the start of your next turn. Your attack only deals normal damage, and the next ally to hit the target automatically confirms the attack as a critical hit.

劇透 -   :

Critical Hits: When you make an attack roll and get a natural 20 (the d20 shows 20), you hit regardless of your target's Armor Class, and you have scored a “threat,” meaning the hit might be a critical hit (or “crit”). To find out if it's a critical hit, you immediately make an attempt to “confirm” the critical hit—another attack roll with all the same modifiers as the attack roll you just made. If the confirmation roll also results in a hit against the target's AC, your original hit is a critical hit. (The critical roll just needs to hit to give you a crit, it doesn't need to come up 20 again.) If the confirmation roll is a miss, then your hit is just a regular hit.

[笨哈]

當然是不行啊?

援助他人（Aid Another）
　　在近戰中你可以通過干擾或夾攻你的敵人，從而協助一個你的同伴對它發動攻擊或進行防禦。如果你的位置可以對一個正在和你的同伴近戰的敵人發動近戰攻擊，那麼你就可以嘗試以一個標準動作援助你的同伴。你進行一次近戰攻擊，攻擊目標的AC視為10。如果你的攻擊命中，那麼在你的下一輪開始之前，你的同伴下一次對目標發動的近戰攻擊檢定+2，或是在對抗目標下一次發動的攻擊時AC +2加值（由你決定）。一個角色可以同時獲得多個其他角色的援助，這些加值可以疊加。

　　你也可以利用援助他人動作，為一個同伴的其他行動提供加值，比如讓他擺脫魔法的影響、或是進行一次技能檢定。

援助他人能力已經明確說了成功之後的效果了，你不能只看前面忽視後面。不過那個Attack roll倒是可以因為buff獲得加值、因為自然20必然命中，但成功之後的效果要遵循援助他人，而不是你自己的能力。