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Thrasta, Tempest's Roar

Legendary Creature — Dinosaur

This spell costs {3} less to cast for each other spell cast this turn.
Trample, haste
Trample over planeswalkers (This creature can deal excess combat damage to the controller of the planeswalker it's attacking.)
Thrasta has hexproof as long as it entered this turn.

CMC
12
Mana cost
{10}{G}{G}
Color identity
G
Rarity
mythic
Set
Modern Horizons 2
Price
$0.80
EDHREC rank
#9186
Buy on TCGplayer
Thrasta, Tempest's Roar card art
Thrasta, Tempest's Roar lands as an 8/8 trample haste that can cost as little as two mana in a spell-dense turn — that's a closing threat, not a late-game curiosity. Cascade commanders like Imoti, Celebrant of Bounty and bounce-trigger engines like Brinelin, the Moon Kraken both want exactly this: a massive body that rewards you for doing what the deck already does.

Best Commanders

Commanders with the highest synergy

01
Imoti, Celebrant of Bounty

Imoti, Celebrant of Bounty

27.9% of decks · synergy 0.27

Imoti, Celebrant of Bounty cascades on every spell with mana value 6 or greater, which means the same turn you're chaining spells to reduce Thrasta, Tempest's Roar's cost, you're also triggering cascades that add even more spells to the chain — the two cards form a self-reinforcing loop that can close games out of nowhere.

02
Ellie and Alan, Paleontologists

Ellie and Alan, Paleontologists

19.6% of decks · synergy 0.19

Ellie and Alan, Paleontologists care about casting big creatures, and Thrasta, Tempest's Roar is exactly the kind of stompy payoff that fits the dinosaur-adjacent, high-power-creature gameplan — an 8/8 trample haste that arrives cheaply late in a spell-heavy turn is a natural top-end threat for what the deck wants to do.

Format Analysis

Where it lives, where it can’t

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

Thrasta, Tempest's Roar is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but Commander is where it actually sees play. In competitive Commander, the storm-count cost reduction turns it into a same-turn kill condition in spell-chaining decks. In Modern and Legacy it's technically castable but faces a much higher bar — those formats have faster, more consistent threats, and an 8/8 that requires significant setup rarely makes the cut outside of fringe storm-adjacent brews. Oathbreaker could support it in a high-spell-density shell, but the 60-card formats are not where Thrasta, Tempest's Roar makes its name.

Key Combos

Combo lines featuring this card

280 decks
Thrasta, Tempest's RoarFood Chain

Thrasta, Tempest's RoarFood Chain

Infinite colored mana that can only be spent to cast creature spells; Infinite commander casts; Infinite ETB; Infinite LTB; Infinite storm count

View on Commander Spellbook ↗

Price Context

Current price

$0.80 bulk tier

At $0.80, Thrasta, Tempest's Roar is firmly bulk, which makes it an easy pickup for any spell-chaining Commander deck. Bulk rares with genuine competitive applications in Commander tend to stay cheap — there's no pressure on this price unless a breakout build pushes demand.

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Sources

Mentioned

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