Cheapest priced copy (Time Spiral): $0.35 at Card Kingdom, near mint, their price list as of .
Tectonic Fiend 
Creature — Elemental · 7/7 · Uncommon · Time Spiral · #181
Echo {4}{R}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
This creature attacks each combat if able.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Time Spiral | 181 | Uncommon | $0.35 | $0.49 |