Cosmotronic Wave 
Sorcery
"This sort of innovation occurs when you set out to improve an electric tea kettle and misplace a decimal."
Artist:
Titus LunterShare:
Text:
Cosmotronic Wave deals 1 damage to each creature your opponents control. Creatures your opponents control can't block this turn.
Rulings:
- 10/5/2018 Because Cosmotronic Wave doesn’t change the characteristics of any permanents, the set of creatures affected by its second effect is constantly updated. Creatures that come under an opponent’s control later in the turn can’t block.
Legality:
- standard: Not legal
- future: Not legal
- frontier: Legal
- modern: Legal
- legacy: Legal
- pauper: Legal
- vintage: Legal
- penny: Legal
- commander: Legal
- 1v1: Legal
- duel: Legal
- brawl: Not legal
- oldschool: Not legal
- historic: Legal
- pioneer: Legal
- gladiator: Legal
- premodern: Not legal
- historicbrawl: Legal
- paupercommander: Legal
- alchemy: Not legal
- explorer: Legal
- predh: Not legal
- oathbreaker: Legal
