Cheapest priced copy (Bloomburrow Commander): $0.79 at Card Kingdom, near mint, their price list as of .
Etali, Primal Storm 
Legendary Creature — Elder Dinosaur · 6/6 · Rare · Forgotten Realms Commander · #126
Whenever Etali attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
22 printings · $0.79 to $69.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Forgotten Realms Commander | 126 | Rare | $1.29 | — |
| Bloomburrow Commander | 196 | Rare | $0.79 | — |
| Commander 2020 | 151 | Rare | $0.99Out of stock | — |
| Commander 2021 | 167 | Rare | $0.99 | — |
| Commander Legends: Battle for Baldur's Gate | 793 | Rare | $0.99 | — |
| Dominaria United Commander | 121 | Rare | $0.99Out of stock | — |
| Foundations | 194 | Rare | $0.99 | $1.99 |
| Foundations | 329 | Rare | $7.99 | $24.99 |
| Foundations | 391 | Rare | — | $64.99Out of stock |
| Jumpstart | 314 | Rare | $0.99 | — |
| The Lost Caverns of Ixalan Commander | 224 | Rare | $0.99Out of stock | — |
| Murders at Karlov Manor Commander | 152 | Rare | $0.99 | — |
| New Capenna Commander | 268 | Rare | $0.99 | — |
| Foundations Promos | 194s | Rare | — | $2.99Out of stock |
| The List | RIX-100 | Rare | $1.29 | — |
| Rivals of Ixalan Promos | 100★ | Rare | — | $1.29 |
| Rivals of Ixalan Promos | 100p | Rare | $5.49 | $4.49 |
| Rivals of Ixalan Promos | 100s | Rare | — | $5.99Out of stock |
| Rivals of Ixalan | 100 | Rare | $1.29 | $3.99 |
| Secret Lair Drop (Tyrannosaurus Rex) | 1389 | Rare | $69.99 | — |
| Secret Lair Drop (Tyrannosaurus Rex) | 1389★ | Rare | — | $69.99 |
| Time Spiral Remastered | 342 | Special | $2.49 | $37.99 |
7 rulings from Wizards of the Coast
- 19 March 2021If an exiled card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
- 19 March 2021Any cards not cast, including land cards, remain in exile. They can't be cast on later turns, even if Etali attacks again.
- 19 March 2021If you cast a card "without paying its mana cost," you can't pay any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, those must be paid to cast the card.
- 19 March 2021In a multiplayer game, if a player leaves the game, all cards that player owns leave as well. If you leave the game, any spells or permanents you control from Etali's ability are exiled.
- 19 March 2021Because all attacking creatures are chosen at once, a creature cast this way can't attack during the same combat as Etali, even if it has haste.
- 19 March 2021If you cast more than one of the exiled cards, you choose the order in which to cast them. A spell you cast this way can be the target of a later spell you cast this way. However, permanent spells cast this way won't resolve until you're done casting spells, so the permanents they become can't be the target of spells cast this way. For example, if you exile Twincast and Lightning Strike, you can cast Lightning Strike and then cast Twincast targeting it; but if you exile a creature card and an Aura card, you can't cast that Aura targeting that creature.
- 19 March 2021If you cast any of the exiled cards, you do so as part of the resolution of the triggered ability. You can't wait to cast them later in the turn. Timing permissions based on a card's type are ignored, and the spells resolve before blockers are declared.