Sword of Kaldra [Mirrodin] Green {T}: Return target legendary creature

{T}: Return target legendary creature to its owner's hand

We shall suffer turmoil equal to that which we have wrought

Enchanted creature gets +2/+1

but I didn't expect it from the building itself

Clockwork Avian enters the battlefield with four +1/+0 counters on it

Sword of Kaldra [Mirrodin] Green {T}: Return target legendary creatureSet: Mirrodin 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.)