I may make jokes about the “Oh YeAh?!” scene but...
Upon rewatch I noticed a tiny detail about the scene with Cinder and Mercury which might’ve been the subtles form of foreshadowing ever existed.
Let’s break down that scene!
First we have the lovely “Oh YeAh?! TeLl ThAt tO-!” scene where Merc is irk at Raven. Meanwhile Cinder tries to keep calm cuz that does not look good in front of people you trying to bargain with.
(not pictured: Watts looking at Merc with curiosity while Emerald is like “dafuk?”)
Then we have the “QUIET!” from Cinder interrupting Mercury (and we shall never hear the end of that sentence ever again!). Cinder puts her (Grimm) arm up and Merc is surprised.
Mercury then looks at Cinder and goes quiet. Cinder throughout the whole scene doesn’t break eye contact with him and still holds the arm up.
I’d like to also mention that this is the first time we actually saw Cinder raising her voice at Mercury (if we don’t count RWBY Chibi of course). Cinder always acted lax towards Mercury (in comparison to Emerald), often boosting his ego (just like Salem boosts Watts’ ego, I actually will make a separate post about that later), in order to make sure he follows her (and make him not feel like he’s in an abusive household with Marcus Black 2.0). Bravo Cinder, you might’ve saved your deal and Merc from complete embarassment,but you fucked up your relationship with your subordinate!
Merc seems to realize this, and the gravity of the situation and his first instinct…
…Is to look at Cinder’s Grimm arm.
Now, we know that in Volume 4, Emerald and Mercury were assisting Cinder who was recovering from her wounds, controlling her new Grimm arm, and training to get back into shape under Salem. So obviously Mercury would know about the Grimm arm and what it can do *cough cough ask Vernal cough cough* . So of course Merc, man with common sense who doesn’t want to be on the other side of that arm…
Shuts up lets go of his pride and keeps quiet
It’s even funnier for Raven who’s all smuggly like: “That’s what I thought!” ONLY to see Vernal get stabbed by Cinder’s arm 3 episodes later!