Cheapest priced copy (Kaladesh): $0.35 at Card Kingdom, near mint, their price list as of .
Hazardous Conditions 
Sorcery · Uncommon · Kaladesh · #182
Creatures with no counters on them get -2/-2 until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kaladesh | 182 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 20 September 2016Hazardous Conditions doesn't care what kind of counter a creature has on it. Whether +1/+1, -1/-1, charge, or fate, any kind of counter causes a creature to be unaffected.
- 20 September 2016The set of creatures affected by Hazardous Conditions is determined as the spell resolves. Creatures that get a counter later in the turn will continue to get -2/-2. Creatures that enter the battlefield or lose their counters later in the turn and noncreature permanents that become creatures later in the turn won't get -2/-2.