Cheapest priced copy (Marvel Super Heroes Commander): $7.99 at Card Kingdom, near mint, their price list as of .
Kindred Discovery 
Enchantment · Rare · Marvel Super Heroes Commander · #150
As this enchantment enters, choose a creature type.
Whenever a creature you control of the chosen type enters or attacks, draw a card.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
11 printings · $7.99 to $119.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2017 | 11 | Rare | $11.99 | — |
| Commander Legends: Battle for Baldur's Gate | 81 | Rare | $9.99 | $12.99 |
| Commander Legends: Battle for Baldur's Gate | 565 | Rare | $11.99 | $16.99 |
| The Lost Caverns of Ixalan Commander | 159 | Rare | $9.99 | — |
| Marvel Super Heroes Commander | 150 | Rare | $7.99 | $8.99 |
| Marvel Super Heroes Commander | 334 | Rare | $9.49 | — |
| Battle for Baldur's Gate Promos | 81s | Rare | — | $20.99 |
| The List | C17-11 | Rare | $8.99 | — |
| Wilds of Eldraine: Enchanting Tales | 22 | Mythic | $16.99 | $32.99 |
| Wilds of Eldraine: Enchanting Tales | 69 | Mythic | $18.99 | $49.99 |
| Wilds of Eldraine: Enchanting Tales | 89 | Mythic | — | $119.99 |
4 rulings from Wizards of the Coast
- 25 August 2017If you somehow control a Kindred Discovery with no chosen creature type, its last ability can't trigger, even if a creature with no creature types enters the battlefield or attacks.
- 10 June 2022You must choose an existing creature type, such as Human or Warrior. Card types such as artifact and supertypes such as legendary can't be chosen.
- 10 June 2022The choice of creature type is made as Kindred Discovery enters the battlefield. Players can't take any actions between the time the choice is made and the time it enters the battlefield. Notably, this means that if it is entering the battlefield at the same time as any creatures of the chosen type, its last ability will trigger.
- 1 September 2023You can't choose multiple creature types, such as "Cat Warrior." A Cat Warrior is both a Cat and a Warrior. It's affected by anything that affects either type and unaffected by things that affect non-Cat or non-Warrior creatures.