Cheapest priced copy (Betrayers of Kamigawa): $0.39 at Card Kingdom, near mint, their price list as of .
Ward of Piety 
Enchantment — Aura · Uncommon · Betrayers of Kamigawa · #28
Enchant creature
{1}{W}: The next 1 damage that would be dealt to enchanted creature this turn is dealt to any target instead.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.39 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Betrayers of Kamigawa | 28 | Uncommon | $0.39 | $0.49 |
One ruling from Wizards of the Coast
- 1 February 2005Redirected damage retains its information. For example, your opponent attacks you with Slith Firewalker (which reads, in part, “Whenever Slith Firewalker deals combat damage to a player, put a +1/+1 counter on it.”) and you block with a creature enchanted with Ward of Piety. If you activate Ward of Piety, targeting your opponent, the Slith’s ability triggers during the combat damage step and it gets a +1/+1 counter. It’s still combat damage.