Stuffed dinosaurs float.
Just keep spamming ExTyrannomon! That When Digivolving/On Play effect is absurd, especially given his floatability.
Oh he died? Fortitude! With Analogman you can tuck the source under him before triggering the On Play if you need it.
Gazimon, Analog Youth, and Meat all provide super easy ways to get sources under your fresh ExTyannomons.
You can also pop an ExTyrannomon to save your Titamon or Digitamamon thanks to Scapegoat, then turn around and play it back and suspend whatever threat your opponent has.
And of course, Raremon can go into one for you at the end of turn. Digitamamon and Titamon help spam the Raremons, or one of the Ver. 4 techs if you need anything extra blocker.
The biggest weakness is return to bottom of deck, but that's why we run 4. De-Digi and Bounce can also be troublesome, but for 3-4 memory, you can drop a Raremon from hand, or with Digitamamon/Titamon to start the Dino pestering all over again
