Now most of you know that I have lag in this mission (in fact lots of you complain about it) but that doesn't mean I don't try to play it.
So before you start breaking this mission you need a few things.
First you need a good High damage set, I tend to run a Mix of BKH and Armor of the fallen for fair defenses and mild status resists against the common threats (Fire, Poison, Freeze).
Next you need a good sword, DA, BTB, Flourish, WMRH all work well but a DVS can be used too.
Last you need either an Ash of Agni Bomb or Voltaic Tempest.
For battle sprites you need a Maskeraith with the Cloak ability maxed out (doesn't have to be ultimate BTW or have an expensive Harness though that is helpful).
HP trinkets are always useful but not needed with a good connection.
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So now that we got the gear lets get to the HOW TO part.
First off you have to understand a few game mechanics.
First the Harvester
1. The Apocrean Harvester will target any player in it's range of Agro.
2. If the Harvester cannot locate a player it will despawn (AKA die).
3. The Grasping Plateau will spawn a Harvester when it detects a player in it.
Next the Knight
1. The Maskeraith's cloak makes it so monsters do not agro to you while cloaked. (Seemingly in Apocrea it prevents the map from detecting you to spawn a Harvester)
2. The dash jump temporarily halts monster agro. (Here it will cause the Harvester to despawn if he is not attacking)
Last the Strategy
1. Run through Apocrea breaking graves, WHILE using the dash jump whenever it cools down (no exceptions other than certain puzzles)
2. If the Harvester does attack (use the tendrils to try and grasp you) activate the Maskeraith Cloak and watch him while cloaked till he despawns
3. When possible clear out the scarabs, since you are alone they can pile up really bad and may be the tougher part when using this method.
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Cheers,
NME
Your three strategy points are good. But "need" is a strong word. Most of the items you claim are needed are not truly needed.
For example, if you have MSI+4 or know the AI well, you can simply outrun/dodge the harvester.
Also, maybe you could explain how Ash of Agni or Voltaic Tempest gets used?