Blastoise ex w/ Radiant Greninja as a second attacker with added synergy with Hisuian Basculegion and Lapras to help reset discarded energy if you don't already draw into Earthen Vessel or Superior Energy Retrieval. Calamitous Snowy Mountain + Rocky Helmet help deal chip damage so you KO with Blastoise ex or even Basculegion or Greninja.