Shade

Shade is an unlockable passive item added in The Binding of Isaac: Afterbirth †.

Effects

Grants a shadow familiar that follows Isaac's movements on a 1-second/ 0.66-second delay and deals 2/ 5 contact damage per tick, or 30/ 75 damage per second, to enemies.
Shade is absorbed by Isaac after dealing over 600 damage over 666 damage.
- The familiar disappears and turns into friendly dark Chargers, similar to those spawned by My Shadow.
- Isaac will now do equal contact damage at the same rate as the Shade used to.
  - BFFS! will continue to work on Isaac even after absorption, doubling damage dealt.
  - Isaac's contact damage increases when absorbing multiple Shade familiars.

If other familiars that move with a similar pattern such as Multidimensional Baby have been collected before the Shade, it will follow them instead with further delay.
If Isaac gains a method of flight, Shade will gain wings.
Cannot be removed with Sacrificial Altar.

Ace Cards: Friendly monsters are still affected by Ace Cards.
Blood Puppy: Either angry version of Blood Puppy will target friendly Chargers as well and can drag them along with it when it charges them. Blood Puppy cannot damage friendly Chargers however friendly Chargers can damage Blood Puppy despite not targeting it outright.
Broken Modem: Broken Modem also affects friendly chargers.
Eraser: Erasing a Charger will prevent all newly created friendly Chargers from spawning as the item spawns a normal Charger before changing it to the special My Shadow variant.
Ghost Bombs / Hungry Soul / Purgatory / Vade Retro: Explosions from ghosts can kill friendly chargers.

Obsessed Fan behaves similarly to Shade before the disappearance, but with a longer delay on following Isaac's movements.
If playing as Dark Judas or Tainted Judas, the shade familiar will have red eyes instead of white ones.
Shade's pickup quote may be a reference to the horror film "It Follows".