Tarn’s ’Love interest’ (She is trying to win the favor of Tarn meanwhile Tarn HAAATESSS her)
In her toy bio she ‘inspired the tales of sirens’ so here she’s a sparkeater-esque creature that uses her songs to attract victims.
She is attracted to Tarn because he’s big, strong, in a high position in the Decepticons, and because he also has a musical outlier (although his outlier wasn’t naturally musical, he just trained it to be. She does not know this)
Her song makes it so that anyone who looks at her sees their greatest desires, be it either mech or shanix or food. She forms into Megatron when she sings to Tarn but Tarn obviously knows its not Megatron.
When Tarn and Overlord first meet her in one of Cybertron’s oceans, Overlord kinda. Ran to her and jumped off the boat immediatly. The only reason Overlord wasn’t eaten was because of the Ununtrium making up his frame, which was too touch for Thunderblast to pierce.
“Awww come on Tarn, we’re perfect for each other! We have voice-based outliers, we have mismatched servos, we have giant guns, we’re purple-”
“Okay I got to stop you right there. ‘We’re purple’? Thunderblast, we’re Decepticons, half the faction is purple. Strika is purple, Blitzwing and Astrotrain are purple, Octane is purple, Skywarp is purple, Lugnut and Clobber are purple, Tidal Wave is purple, Shockwave is purple, You are purple, I am purple! Being a purple Decepticon is as common as a wheeled grounder!”