Seems everybody I battle has an I-Rex and it obviously costs me a lot of battles due to its power/cloak. I have been playing since May and am in Sorna Marshes around the 3500 and still well short of DNA to create I-Rex, mainly due to the fact there is simply no T-Rex around where I live. I have bought incubators, taken long walks etc, but not enough T-Rex. Personally I think I may have done quite well holding a trophy score roughly around 3500 without an I-Rex but for heavens sake I really want one!!!