Thunderwave

Sorcery

Roll a twenty sided die. (Remember that MTG spindowns are not well weight balanced, so please roll a die that isn't an MTG spindown.)

If you a roll a 1-9 | Thunderwave deals 3 damage to each creature.
If you roll 10-19 | You may choose a creature. Thunderwave deals 3 damage to each creature not chosen this way.
If you roll a 20 | Thunderwave deals 6 damage to each creature your opponents control.

Legality

Format	Legality
1v1 Commander	Legal
Alchemy	Legal
Archenemy	Legal
Arena	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Duel Commander	Legal
Gladiator	Legal
Highlander	Legal
Historic	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Oathbreaker	Legal
Planechase	Legal
Quest Magic	Legal
Vanguard	Legal
Vintage	Legal