Ghostly Prison

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Grid Monitor

Flying
At the beginning of your upkeep, sacrifice another artifact. If you can't, tap this creature and you lose 4 life.

No more than two creatures can attack you each combat.

Lifelink
{2}, {T}: Target opponent gains control of another target permanent you control. If they do, you draw a card.

At the beginning of your upkeep, this artifact deals 2 damage to you.
Sacrifice a creature: Target opponent gains control of this artifact.