Covoids: Attack of the Covoids!

The COVOIDS; deadly alien macro-viruses within a robotic shell. An invasion like Earth has never seen. Even our brilliant rebel lord of time has to assemble a brand new hyper-syringe in order to combat his foes.

This image comes from months of wondering "what would that wandering alien lord do in our current predicament?" Chances are, they'd call it a "fixed point in time" and that it would be up to all of us, humans, to find the will, strength, intelligence, and bravery to put aside our differences and come together to vanquish this enemy on our own. They'd press upon us that this is not a villain that can be defeated with sonic devices or time travel, but with care, common sense, and protective measures.

They'd then hop in that wonderful, near-magical, box of theirs, and travel on to their next destination of adventure and wonder. Allons-y!