Hmm...
The strongest titan?
Welll.....
Lets start off with some math
This is a monolith, the formerly largest unit ever to exist in basic
40k. Until the super size me codices were released (tau, eldar). Now its time it got revenge on these monstrosities
And this is megatron, leader of the decepticons.
Now take those two things and combine them to get this epic piece of winsauce.
And considering that this is probably bigger then a scout class titan and is necron it is probably the strongest titan currently since one scout class necron titan mopped the floor with a good chunk of titans