Based on a tongue eating louse, copepod, flounder, and two-pronged tongue (just to add to the dragon type a little)
Far from my best work, but I doodled this just after waking up so I wouldn't forget what it looked like. Plus it isn't a part of any passion project I have so I figured I shouldn't touch up on it too much.
Mega evolution power seeps into tatsugiri's brain, increasing its intelligence, but decreasing its courtesy. Mega tatsugiri now latches onto dondozo's tongue, causing copious amounts of draconic energy to flow through its host. This makes dondozo way more powerful, but dondozo's typically scared of tatsugiri when the battle's over.
by Every_Confection4265