Cheapest priced copy (Coldsnap): $0.35 at Card Kingdom, near mint, their price list as of .
Balduvian Warlord 
Creature — Human Barbarian · 3/2 · Uncommon · Coldsnap · #77
{T}: Remove target blocking creature from combat. Creatures it was blocking that hadn't become blocked by another creature this combat become unblocked, then it blocks an attacking creature of your choice. Activate only during the declare blockers step.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
7 rulings from Wizards of the Coast
- 15 July 2006The targeted creature that’s removed from combat may then block the attacking creature that it was originally blocking. If so, that creature will no longer be unblocked.
- 15 July 2006Balduvian Warlord’s ability may be activated during any player’s turn.
- 15 July 2006The attacking creature will become unblocked only if the targeted creature was the only one that blocked it this combat, even if all the other creatures that were blocking it are no longer on the battlefield or are no longer blocking it (even those removed with other Balduvian Warlords’ abilities).
- 15 July 2006If an attacking creature becomes unblocked this way and remains unblocked, it will deal its combat damage to the defending player. Abilities that say “When this creature attacks and isn’t blocked” won’t trigger.
- 15 July 2006If the targeted creature has a “When this creature blocks” ability, it will trigger when Balduvian Warlord’s ability resolves and the creature blocks again.
- 15 July 2006If an attacking creature has an ability that triggers “When this creature becomes blocked,” it triggers when a creature blocks it due to the Warlord’s ability only if it was unblocked at that point.
- 15 July 2006If an attacking creature has a “When this creature becomes blocked by [a creature]” ability, it triggers when a creature blocks it due to the Warlord’s ability.