All your creatures become unblockable and indestructible

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

At the beginning of your upkeep, create a 1/1 red Goblin creature token with haste. Goblin creatures attack each combat if able.

Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact.

Horsemanship (This creature can't be blocked except by creatures with horsemanship.) Each creature you control can't be blocked by more than one creature.