Cards that allow you to disrupt your opponent are always very attractive strategies for competitive players. Honchkrow SV has a very unique Poké-Power, where it can return an opponent’s Basic Pokémon into play with its “Darkness Restore” Poké-Power. This combos greatly with it’s only attack: “Riot”, as it does 30 damage + 10 more damage for every unevolved Pokémon in play (both yours and your opponent’s).
If your opponent tries to fill up their bench to avoid letting you revive a Basic Pokémon, you can use Dusknoir’s “Dark Palm” to make sure you can use “Darkness Restore”, as well as disrupting the opponent’s strategy by shuffling back in their deck a threatening Pokémon. The sole presence of Dusknoir though will probably make your opponent limit his own bench to 3 Pokémon, so you’ll be able to use “Darkness Restore” at will most likely. Next card that would go well with this pair of Pokémon, would be Honchkrow LV.X. Honchkrow LV.X’s “Feint Attack” allows you to target the Basic Pokémon you brought back into play, and KO it immediately with the help of a Crobat G PL.
If you do not want to risk running a Stage 2 line, you can use a more straightforward version of the deck, by pairing Honchkrow SV with Honchkrow G PL. Honchkrow G PL also enjoys having low HP targets to snipe quickly, once again with the aid of Crobat G’s “Flash Bite”.
The last card that should work pretty well with Honchkrow SV and Honchkrow LV.X is the new Metagross SV. It’s Poké-body “Gravitation” reduces 20 HP from every Pokémon in play (both yours and your opponent’s). With this, you no longer depend on Crobat G allowing you to KO 50 HP Basics, as 40 damage with “Feint Attack” will usually be enough to finish off the Basic Pokémon that was brought back into play.
My final recommended card for use with Honchkrow SV is Unown “Q”. This card allows you to “Darkness Restore” a Basic Pokémon, and then maybe have something like Luxray GL LV.X use Bright Look and KO it right away.
You can use Honchkrow’s power once per turn, but once you have set up, your opponent probably has 6 turns remaining in which he must get rid of your Honchkrow swarms or else the same Pokémon will keep getting KO’d over and over again until you take your 6 prizes.