Sword of Kaldra [Mirrodin Promos] Wurm players can't cast spells or

players can't cast spells or activate abilities that aren't mana abilities

Creatures of the chosen color get +1/+1

When Spirit Loop is put into a graveyard from the battlefield

Set: Legends Type: Artifact Rarity: Rare Cost: {5} {3}

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {6}{G}{G} Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake

Sword of Kaldra [Mirrodin Promos] Wurm players can't cast spells orSet: 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.)