PokeLoot [Cobblemon] Data Pack 1.21.1

You can use /function pokeloot:spawn_greatballs to spawn 20 greatball loots around you (this command is a bit resource intensive but should run after a couple of seconds).

You can use /function pokeloot:spawn_ultraballs to spawn 20 ultraball loots around you (this command is a bit resource intensive and might lag your world for some time).