Cheapest priced copy (Dragon's Maze): $1.49 at Card Kingdom, near mint, their price list as of .
Sire of Insanity 
Creature — Demon · 6/4 · Rare · Dragon's Maze · #104
At the beginning of each end step, each player discards their hand.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $1.49 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dragon's Maze | 104 | Rare | $1.49 | $7.99 |
| Secret Lair Drop | 275 | Rare | $6.99 | $6.49 |