Cheapest priced copy (Secrets of Strixhaven Commander): $1.79 at Card Kingdom, near mint, their price list as of .
Eldrazi Conscription 
Kindred Enchantment — Eldrazi Aura · Rare · The List · #UMA-3
Enchant creature
Enchanted creature gets +10/+10 and has trample and annihilator 2. (Whenever it attacks, defending player sacrifices two permanents of their choice.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
6 printings · $1.79 to $27.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 Commander | 155 | Rare | $2.29 | $5.99 |
| The List | UMA-3 | Rare | $1.99Out of stock | — |
| Rise of the Eldrazi | 3 | Rare | $2.79 | $27.99 |
| Secret Lair Drop | 1218 | Rare | $9.99 | $17.99 |
| Secrets of Strixhaven Commander | 131 | Rare | $1.79 | — |
| Ultimate Masters | 3 | Rare | $2.29Out of stock | $6.99Out of stock |
7 rulings from Wizards of the Coast
- 15 June 2010Annihilator abilities trigger and resolve during the declare attackers step. The defending player chooses and sacrifices the required number of permanents before they declare blockers. Any creatures sacrificed this way won't be able to block.
- 15 June 2010Eldrazi Conscription is an Eldrazi. However, it doesn't turn the enchanted creature into an Eldrazi.
- 15 June 2010If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn't blocked, it simply won't deal combat damage to anything.
- 7 December 2018If a creature has multiple instances of annihilator, each triggers separately when that creature attacks.
- 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 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 2024This card 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.