Cheapest priced copy (Guilds of Ravnica): $0.35 at Card Kingdom, near mint, their price list as of .
Demotion 
Enchantment — Aura · Uncommon · Guilds of Ravnica · #9
Enchant creature
Enchanted creature can't block, and its activated abilities can't be activated.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Guilds of Ravnica | 9 | Uncommon | $0.35 | $0.99 |
One ruling from Wizards of the Coast
- 5 October 2018Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keyword abilities are activated abilities and will have colons in their reminder text. Triggered abilities (starting with “when,” “whenever,” or “at”) are unaffected by Demotion.