Axe of Kaldra

Equipped creature has +2/+2
If you lost life whilst casting this spell, equipped creature has +3/+3 and "{u}, {t}: Destroy target tapped permanent" instead.
Equip {2} ({2}: 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.)