Wraith Tactics

Check 1d4chan.

>>50801122

They are so good it's hard to fail with them. They are the ideal melee unit. Inexpensive enough to spam them, fast and sturdy enough to get where they need to go, and even enough melee power to take on most targets unlike things like Chaos Spawn which are frail or Khorne Fleshhounds which can be tarpitted by things like Ironclads.

Simply run them at a target they're able to damage, and you will likely intercept them and maybe even kill them.

For extra durability, run them in the Canoptek formation. However, having to operate within the limits of that formation sorely restrict their ability to spread out or separate, and move at will. However it can be worth it for the extreme durability increase. Probably better used for defensive purposes or as things to soak up shooting, rather than chasing down targets.

>>50801122
Step 1: Take Decurion and max allowed wraiths in Harvests
Step 2: Get drunk.
Step 3: Deploy them all to the line.
Step 4: Push them across the table.
Step 5: Profit?

Give them whip coils and run them at what you want to kill. It's really hard to go wrong with these guys.

That said, keep in mind their wraithflight (or whatever its called) rule can let you pull some tricky shit and that, as good as they are, they're better for mulching weak units and moving onto the next rather than taking on other dedicated melee units.

>>50801122
They move 12 and ignore obstacles, get 4 S6 rending attacks on the charge and sit at T5 with a 3++. Do whatever the fuck you want with them.

Either go unbound and just take 62 of them or take them in formation within a decurion like anons say for 3++ 4++ with re-rolled ones on the second as long as they stay near the lord.

They die to massed infantry fire or S10 weapons. A blob of 50 conscripts on orders can rapid fire a couple to death in one round. Otherwise T6 or AV 14 units or those with 4++ and FnP can hold them down and hope you waste fewer points doing it.

I remember back in 6th I used to use their speed to tie big dangerous enemies up and reduce their Initiative so my C'tan shard can just outright remove them from play with Time's Arrow (I test).

Nowadays I use a small team to mop up squads I leave with a handful of dudes after the rest of my army shoots them to oblivion. Why waste a blob of 20 warriors to shoot the crippled squad of 4 dudes when I can aim them at the squad of 10+ dudes? But generally just throw them at a target they can damage, as the other posters said.