"As usual, you're already late, Flash. It's time you let someone else have the Speed Force."

With cold precision, he knocks the Flashhh unconscious & chains him to the Bat-mobile, modified with Cosmic Treadmill technology

"Barry Allen's consciousness is now trapped within me, while his speed fuels my power."

They vanish into the Speed Force, and emerge as one terrible being - the Red Death. Bruce's mind, now fused with Barry's speed, had twisted into something dark & unrecognizable, his intelligence amplified to an almost god-like level, surpassing even his former self.

"Now this city will feel my wrath."

The Red Death’s corrupted Speed Force energy rapidly accelerates time around civilians, aging them to dust with a touch.

"My speed force intellect calculates a thousand strategies at once. My reflexes perceive events in slow motion."

"I can traverse the world in less than a heartbeat, conjure nano constructs of pure Speed Force energy."

He vibrates his molecules to become intangible, phasing through any attack. His touch induces rapid cellular decay

His powers are but an extension of his will:

Speed Force Intelligence: His brain synapses fired at super speed, calculating a million strategies, discarding them and formulating a million more in less than an instant. Can fabricate impressive technological wonders in mere seconds time, as well as conjure complicated nano-wear activated using his speedforce powers.

Speed Force Conduit: His movements are imperceptible, his attacks a series of events that occur in the blink of an eye. The intensity of his speed allows him to generate immense superhuman force, which allowed him to punch a man in two with a single blow.

Molecular Control: Can destabilize the cohesion of any object—or person—with a touch.

Noticing you, The Red Death blitzes behind your back in an instant

"And end lives with but a whisper..."

His vibrating hand plunges into your chest, ready to stop your heart in less than a second