Cheapest priced copy (The List): $4.99 at Card Kingdom, foil, near mint, their price list as of .
Spelltithe Enforcer 
Creature — Elephant Wizard · 3/3 · Rare · Guildpact · #18
Whenever an opponent casts a spell, that player sacrifices a permanent of their choice unless they pay {1}.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper