You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.
Mana cost
4
B
Mana value
5
Printings
From
$10.63
EDHREC rank
#3376
Buy
Formats
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
16 Apr 2021
If you own multiple commanders on the battlefield and/or in the command zone, you choose one of them as Stinging Study resolves to determine the value of X.
16 Apr 2021
If your commander is under the control of another player as Stinging Study resolves, it is still on the battlefield and will still be used to determine the value of X.