Krana Ca

As long as this creature is equipped with a
Bohrok equipment, if a source would deal combat damage to it, prevent 1 of that damage.
{3}{r}, {t}: Krana Ca loses this ability and becomes
an Aura enchantment with Enchant Creature.
Attach it to target creature. You may pay {r} to
end this effect.
Whenever damage is dealt to enchanted creature,
or enchanted creature deals damage, it deals that
much damage to enchanted creature's controller.