There really is no good fire pokemon to use burn energy on from XY on save maybe Camerupt EX. It must mean that this set will have a few.
It also makes me wonder if Togekiss EX and Emboar EX are going to be in this set as it doesn't look like we are going to get an English version of Emboar EX...
The only problem is that Maxie's and Archie's both lose their support to get them out easily. With Jirachi, computer search, and superior energy retrieval all leaving standard, the diffuculty is get a Maxie's out on turn one or turn 2. If it takes longer than that its better just to evolve it...