T-Tar is fast bulk and stops the use of Berries.
Gigalith is standard, and it's fun to switch in Palossand when it uses Explosion.
Greninja can outspeed a good number of Pokemon un-scarfed, so I gave it Mat Block to give me a free turn to attack.
Palossand is obviously bulky attacker. I let Greninja Water Shuriken it to boost its defense with Water Compaction then Shore Up. Sand helps with the Sp. Defense.
Tangrowth is used to deal with Bulu and Breloom.
Mamoswine deals with Grass types with help from the Rindo Berry and Sand's Sp, Defense boost.