Sword of Kaldra [Mirrodin Promos] Masters 25 Benalia has a complex caste

Benalia has a complex caste system that changes with the lunar year

all creatures that opponent controls attack if able

you may put that card onto the battlefield

you may skip that turn instead

Sword of Kaldra [Mirrodin Promos] Masters 25 Benalia has a complex casteSet: Mirrodin Promos Type: Legendary Artifact Equipment Rarity: Rare Cost: {4} Equipped creature gets +5 +5. Whenever equipped creature deals damage to a creature, exile that creature. (Exile it only if it's still on the battlefield.) Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the creature leaves.)