MagicTheGathering.fyi

Tectonic Split

Enchantment

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."

CMC
6
Mana cost
{4}{G}{G}
Color identity
G
Rarity
rare
Set
Avatar: The Last Airbender Eternal
Price
$2.30
EDHREC rank
#8798
Buy on TCGplayer
Tectonic Split card art
Tectonic Split hits the board as a land destruction spell that also produces mana — exile a land to add two mana of any color, which means it replaces itself in tempo while dismantling a problem land. The cost is real: exiling your own land is sometimes the only option, and at three mana it's not cheap. Kiora's Follower and Toph, Hardheaded Teacher both abuse the mana generation side, making this a combo piece first and removal second.

Best Commanders

Commanders with the highest synergy

01
Toph, Hardheaded Teacher

Toph, Hardheaded Teacher

17.9% of decks · synergy 0.17

Toph, Hardheaded Teacher's ability rewards exiling cards from hand and generating mana through unconventional means, and Tectonic Split feeds directly into that engine — crack a land, add two mana, and watch Toph convert the tempo swing into pressure.

02
Toph, Earthbending Master

Toph, Earthbending Master

17.7% of decks · synergy 0.16

Toph, Earthbending Master cares specifically about land interaction and landfall-adjacent effects, and Tectonic Split gives that deck a removal spell that doubles as a mana burst rather than a tempo loss.

03
Sin, Spira's Punishment

Sin, Spira's Punishment

9.4% of decks · synergy 0.09

Sin, Spira's Punishment runs big, splashy spells and values mana acceleration to hit its top end faster — Tectonic Split's two-mana bonus can front-load the acceleration needed to resolve a game-ending threat a turn early.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern not legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Tectonic Split is a Commander card — the singleton format's appetite for flexible utility and combo-enabling pieces is exactly where it earns a slot. The Kiora's Follower loop and similar untap interactions give it a real combo ceiling in that context, and land destruction is more tolerated when it comes attached to mana production. In Legacy and Vintage it's legal but irrelevant; faster formats have zero interest in a three-mana sorcery that exiles one land. Oathbreaker could find niche use in the same earthbending-style builds, but Commander is where Tectonic Split actually does something.

Key Combos

Combo lines featuring this card

Price Context

Current price

$2.30 cheap tier

At $2.30, Tectonic Split sits in the cheap tier — affordable enough to slot into any brew without deliberation. It's a narrow card with a specific audience, so the price is unlikely to move unless a breakout combo deck pushes demand, but you're not overpaying for what it does.

Explore

Sources

Mentioned

← All cards

Updated . Data from Scryfall, EDHREC, and Commander Spellbook.