Complex sentence: About mid-way through the character's advancement of the game several new options for attacks, armours, and player buffs become available, and the introductory powers become much less useful, even obsolete, to the player.
Split into simpler sentences: About mid-way through the character's advancement of the game several new options for attacks, armors, and player buffs become available. The introductory powers become much less useful, even obsolete, to the player.