Moonshaker Cavalry
Creature — Spirit Knight
Flying
When this creature enters, creatures you control gain [[ keyword: "flying" ]] and get +X/+X until end of turn, where X is the number of creatures you control.
High King Kenrith's armies followed him into the afterlife, ready to charge at his command.
Aldo Domínguez
Wilds of Eldraine (WOE)
• #21Rulings
Moonshaker Cavalry's triggered ability affects only creatures you control at the time it resolves. Creatures you begin to control later in the turn won't be affected.
(wotc • 2023-09-01)
The value of X is determined only as Moonshaker Cavalry's triggered ability resolves, potentially including Moonshaker Cavalry itself. It won't change later in the turn if the number of creatures you control changes.
(wotc • 2023-09-01)
Rulings
Moonshaker Cavalry's triggered ability affects only creatures you control at the time it resolves. Creatures you begin to control later in the turn won't be affected.
(wotc • 2023-09-01)
The value of X is determined only as Moonshaker Cavalry's triggered ability resolves, potentially including Moonshaker Cavalry itself. It won't change later in the turn if the number of creatures you control changes.
(wotc • 2023-09-01)