Space sculptor (Space Beleren divides the battlefield into alpha, beta, and gamma sectors. If a creature isn't assigned to a sector, its controller assigns it to one. Opponents assign first.) +1: Creatures in each sector can be blocked this turn only by creatures in the same sector. −1: Put a +1/+1 counter on each creature in the sector of your choice. −5: Destroy all creatures in the sector of your choice.

Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or planeswalkers you control for as long as it has a vow counter on it.