Cheapest priced copy (Commander 2015): $0.49 at Card Kingdom, near mint, their price list as of .
Disaster Radius 
Sorcery · Rare · Explorers of Ixalan · #26
As an additional cost to cast this spell, reveal a creature card from your hand.
Disaster Radius deals X damage to each creature your opponents control, where X is the revealed card's mana value.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 150 | Rare | $0.49 | — |
| Commander Anthology Volume II | 92 | Rare | $0.49 | — |
| Commander 2011 | 119 | Rare | $0.49 | — |
| Explorers of Ixalan | 26 | Rare | $0.49 | — |
| Rise of the Eldrazi | 141 | Rare | $0.49 | $0.99 |