Who to r4 next as my 5th?

Already have Serpent, Knull, Onslaught and Cheeilth at r4.
My focus is Battlegrounds and war only.

Comments

Pig cause poppers go pop but if I had to go with one of the other 3 probly photon or Jess my first r4 science will be photon unless I pull Jess

Mr Sinister