This weak nightfall rotation is Liminality and the weapon is Slammer. Even though the fact that the nightfall itself is quite annoying, it also usually takes about 16 minutes on normal difficulty to pass it. I've done about 15 normal nightfalls, 5 on exeprt difficulty and 1 on master, and I havent got the Slammer. This begs the question, is Slammer even obtainable without beating grandmaster?
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Got a Slammer from my seventh run on Normal difficulty.
Be sure to equip a Prosperity mod to your Ghost and to kill [u]all[/u] Champions within the activity (a good 90% of players I matched with completely ignored the Barrier Knight in the chasm just before the final encounter and several didn’t seem to realize one also spawns after killing the Wizard Guardian between the boss’s second and third damage phases).
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