Raichu XY / Leafeon PLF is good with Deoxys EX. Deoxys does not add much about Raichu, but it takes bench space which are good for Raichu, and Leafeon benefits it a lot. Also, it has grass-type and lightning-type attackers, Raichu zaps Colorless Rayquaza and Yveltal, Leafeon breaks Toad, Groudon...