Complex sentence: When the game is accessed for the first time the player are given one random Pokémon and 10 PokéBalls to catch other Pokémon with, however without the monthly subscription the player only has the ability to catch three Pokémon, all chosen at random.
Split into simpler sentences: When the game is accessed for the first time the player is given one random Pokémon and 10 PokéBalls to catch other Pokémon with. However, without the monthly subscription the player only has the ability to catch three Pokémon, all chosen at random.