Cheapest priced copy (Avatar: The Last Airbender Eternal): $4.49 at Card Kingdom, near mint, their price list as of .
Tectonic Split 
Enchantment · Rare · Avatar: The Last Airbender Eternal · #144
As an additional cost to cast this spell, sacrifice half the lands you control, rounded up.
Hexproof
Lands you control have "{T}: Add three mana of any one color."
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $3.49 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender Eternal | 144 | Rare | $4.49 | $3.49 |
| Avatar: The Last Airbender Eternal | 208 | Rare | $4.99 | $3.49 |