Cheapest priced copy (Commander Masters): $7.49 at Card Kingdom, near mint, their price list as of .
Not of This World 
Kindred Instant — Eldrazi · Uncommon · Rise of the Eldrazi · #8
Counter target spell or ability that targets a permanent you control.
This spell costs {7} less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $7.49 to $34.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 807 | Uncommon | $7.49 | — |
| The List | ROE-8 | Uncommon | — | $7.99 |
| Rise of the Eldrazi | 8 | Uncommon | $7.99 | $34.99 |
8 rulings from Wizards of the Coast
- 15 June 2010The spell or ability you target with Not of This World may have any number of targets, as long as one of them is a permanent you control.
- 15 June 2010If a spell or ability targets you, but not a permanent you control, you can't cast Not of This World targeting it.
- 15 June 2010Not of This World's first ability checks the current state of the targets of the spell or ability it's targeting to determine whether one of them is a permanent you control. For example, say a player casts Forked Bolt targeting you and a creature you control. If, in response, another spell or ability causes that creature to no longer be under your control, then you can't cast Not of This World targeting Forked Bolt. Alternately, if you cast Not of This World targeting Forked Bolt and, in response, another spell or ability causes that creature to no longer be under your control, Not of This World won't resolve when it tries to resolve for having an illegal target.
- 15 June 2010Not of This World's second ability checks the current state of the targets of the spell or ability it's targeting to determine whether one of them is a creature you control with power 7 or greater. This check is made as you cast Not of This World, before you activate mana abilities. It doesn't matter what the power of the creature was at the time the targeted spell or ability was cast.
- 15 June 2010Not of This World doesn't check whether the targets of the spell or ability it's targeting are currently legal for that spell or ability, only who controls them and what their power is. For example, say a player casts Forked Bolt targeting you and a creature you control. If, in response, another spell or ability causes that creature to gain shroud, then you can still cast Not of This World targeting Forked Bolt.
- 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.
- 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.