Play pattern of get stage 1s (Biberal, Mightyene, Flapple, Lycanroc, and Zoroark) in the discard pile by playing discard based cards like Ultra balls, quick balls, Professor's Research, and Trekking Shoes. Once they are in there, try to do chip damage with Kleavor Vstar's Axe break until they switch in a high priority target where you use rampaging star. Along with the chip damage taken from Axe Break you should be able to OKHO any pokemon.
If Kleavor gets knocked out, you should have a Zoroark on the bench that you can use to bring out back up Stage 1 damage dealers. These being the 2 mightyena's that can do free 160 damage to any Vmax pokemon, Flapple who does increased damage based on the amount of abilities on the opponents bench, or arcanine who can stack energy to do high rates of damage.