Cheapest priced copy (Ice Age): $0.49 at Card Kingdom, near mint, their price list as of .
Mind Whip 
Enchantment — Aura · Rare · Ice Age · #149
Enchant creature
At the beginning of the upkeep of enchanted creature's controller, that player may pay {3}. If they don't, this Aura deals 2 damage to that player and you tap that creature.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ice Age | 149 | Rare | $0.49 | — |