Greater Good
Enchantment
Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.
"There's wisdom to be gained in death—whether it be one's own or someone else's." —Jarad, Golgari Lich-Lord
Mathias Kollros
Bloomburrow Commander (BLC)
• #223Rulings
Use the sacrificed creature's power as it last existed on the battlefield to determine how many cards you draw.
(wotc • 2020-08-07)
If you don't have three cards in hand when instructed to discard three cards, you discard your hand.
(wotc • 2020-08-07)
You draw and discard cards all while Greater Good's ability is resolving. Nothing can happen between the two, and no player may choose to take actions.
(wotc • 2020-08-07)
Rulings
Use the sacrificed creature's power as it last existed on the battlefield to determine how many cards you draw.
(wotc • 2020-08-07)
If you don't have three cards in hand when instructed to discard three cards, you discard your hand.
(wotc • 2020-08-07)
You draw and discard cards all while Greater Good's ability is resolving. Nothing can happen between the two, and no player may choose to take actions.
(wotc • 2020-08-07)