Bioshift !!!!!!!! you can do A LOT with this card. i think it's a definite in here. need more mana? bring them over to your Gyre Sage . want a big Slumbering Dragon ? bring 'em over. your Primordial Hydra is what makes the Bioshift that much better.

Gruul Ragebeast seems like it should be here just because, oh and maybe some form of counter spell for when they inevitably try and remove your creatures, Ranger's Guile or even Boros Charm for more lethality, especially with the double strike!

Allosaurus Rider ?

Bioshift is a must. It'll make sure that you don't lose all those counters you worked so hard to build off in the event of something getting destroyed.

I've also found that Fog works really well with Slumbering Dragon because you still get the counters even if the damage is prevented.

Finally, Predator Ooze would be fun with this deck, but I understand if ooze isn't welcome in Jurassic park

I'm sure ooze could be Aptly renamed to suite a "role" in Jurassic park...it's who has to do clean up I worry about ;)

i feel bad for the lonely Avacyn's Pilgrim . he looks scared shitless being stranded in Jurassic Park! At least he has a lamp

A second and maybe third Kessig Wolf Run seems good with all the big creatures and the Increasing Savagery s.