I may be wrong on this, but I believe the weapon is the reward for beating the boss, so no point in having the DLC before you intend to fight the boss.I backed $28, so I didn't get this DLC. Is it worth owning from the beginning for the Swordwhip, or is that weapon quickly made redundant? I'm wondering because I could wait for this to go on sale for the boss fight (since I won't be strong enough for a while anyway) unless the weapon is worth having throughout the game.