Unfortunately, since it was ruled a misprint, it's not so useful. It only makes your Pokemon in play delta, not all Pokemon in play, so that makes the obvious combinations with Togetic d, Arbok d or Dewgong d/Camerupt CG redundant. Where it will come into play is with Powers and Bodies that assist delta Pokemon. For example, you could run it with a Feraligatr d DF or Gyarados d HP to get the 10 attack bonus, and Mew ex LM (not my idea though - saw it on the Gym), so you get to use your opponent's attacks against them with extra damage added. Or you could tech it into a pure Body deck like Lunasol and run Holon Legacy to get rid of your weakness. The other nice thing about Ampharos is that the other one in the format - Ampharos UF - has a very nice power that helps with energy shifting, so you can make use of that in a deck you build with Ampharos.