Owlbear Shepherd
Creature — Goblin Druid
At the beginning of your end step, if creatures you control have total power 8 or greater, draw a card.
Scott Murphy
Rulings
Owlbear Shepherd's ability has an intervening if clause, which means that it checks to see if creatures you control have total power 8 or greater both as it would trigger and as it resolves. If enough creatures have been removed or their total power is reduced to below 8 by the time the ability tries to resolve, you will not draw a card.
(wotc • 2022-06-10)
Rulings
Owlbear Shepherd's ability has an intervening if clause, which means that it checks to see if creatures you control have total power 8 or greater both as it would trigger and as it resolves. If enough creatures have been removed or their total power is reduced to below 8 by the time the ability tries to resolve, you will not draw a card.
(wotc • 2022-06-10)