Cheapest priced copy (Adventures in the Forgotten Realms): $0.49 at Card Kingdom, near mint, their price list as of .
Meteor Swarm 
Sorcery · Rare · Adventures in the Forgotten Realms · #380
Meteor Swarm deals 8 damage divided as you choose among X target creatures and/or planeswalkers.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.49 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Adventures in the Forgotten Realms | 155 | Rare | $0.49 | $0.49 |
| Adventures in the Forgotten Realms | 380 | Rare | $0.59 | $0.49 |
| Adventures in the Forgotten Realms Promos | 155a | Rare | — | $2.99 |
| Adventures in the Forgotten Realms Promos | 155p | Rare | $0.49 | $2.99 |
| Adventures in the Forgotten Realms Promos | 155s | Rare | — | $5.99 |
2 rulings from Wizards of the Coast
- 23 July 2021If Meteor Swarm has one or more targets, and some (but not all) of them are illegal as Meteor Swarm tries to resolve, the amount of damage dealt to the remaining legal targets doesn't change. If all targets become illegal, Meteor Swarm won't resolve.
- 23 July 2021You divide the damage as you cast Meteor Swarm. Each target must be assigned at least 1 damage. Because there is a maximum of eight targets, X can't be greater than 8.