Cheapest priced copy (Lorwyn): $4.49 at Card Kingdom, near mint, their price list as of .
Militia's Pride 
Kindred Enchantment — Kithkin · Rare · Lorwyn · #30
Whenever a nontoken creature you control attacks, you may pay {W}. If you do, create a 1/1 white Kithkin Soldier creature token that's tapped and attacking.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $4.49 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn | 30 | Rare | $4.49 | $7.99 |
5 rulings from Wizards of the Coast
- 1 October 2007The token enters attacking. It doesn't trigger "when a creature attacks" triggers and is not subject to restrictions on declaring attackers.
- 1 October 2007You choose which player or planeswalker the token is attacking. It doesn't have to attack the same player or planeswalker as the creature that caused the ability to trigger.
- 7 June 2024This cards was originally printed with the "tribal" card type. That card type has been replaced with "kindred". This change does not affect the gameplay function of this card.
- 7 June 2024While it appears only on cards that already have other card types, kindred is a card type and will be counted by effects that refer to the number of card types among cards in a zone.
- 7 June 2024Kindred is a card type that allows noncreature cards to have creature types. For example, Echoes of Eternity is an Eldrazi (although not a creature) while on the battlefield and an Eldrazi card (although not a creature card) in zones other than the battlefield.