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
Block Constructed	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Duel Commander	Legal
Freeform	Legal
Gladiator	Legal
Highlander	Legal
Historic	Legal
Historic Brawl	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Oathbreaker	Legal
Planar Constructed	Legal
Planechase	Legal
Quest Magic	Legal
Vanguard	Legal
Vintage	Legal