I am loving HTL in this deck, since one of its biggest threats is HTL/Virbank, you can dish the poison right back for OHKO's with Cobalion EX on most non EX's. You can OHKO Sableye with an energy press by Cobalion NV. Even without Virbank, that 10 damage is the difference between getting 2HKO'd by Keldeo and OHKOing Keldeo with Cobalion EX.
EDIT: This is by no means suggesting to play Virbank, as that would be silly.
EDIT: This is by no means suggesting to play Virbank, as that would be silly.