Winter, Cursed Rider
Legendary Creature — Human Warlock
Ward—Pay 2 life.
Artifacts you control have "Ward—Pay 2 life."
Exhaust — 
, Exile X artifact cards from your graveyard: Each other nonartifact creature gets -X/-X until end of turn.
Daren Bader
Aetherdrift (DFT)
• #228Rulings
If an ability triggers whenever you activate an exhaust ability, that ability resolves before the exhaust ability resolves.
(wotc • 2025-02-07)
If an exhaust ability of a permanent is activated, and then that permanent leaves the battlefield and returns to the battlefield, it becomes a new object so its exhaust ability can be activated again.
(wotc • 2025-02-07)
Multiple instances of ward each trigger separately.
(wotc • 2025-02-07)
Exhaust abilities can be activated any time you could normally activate an ability.
(wotc • 2025-02-07)
If an effect causes Winter to become an artifact, its second ability will cause it to gain a second instance of ward.
(wotc • 2025-02-07)
Rulings
If an ability triggers whenever you activate an exhaust ability, that ability resolves before the exhaust ability resolves.
(wotc • 2025-02-07)
If an exhaust ability of a permanent is activated, and then that permanent leaves the battlefield and returns to the battlefield, it becomes a new object so its exhaust ability can be activated again.
(wotc • 2025-02-07)
Multiple instances of ward each trigger separately.
(wotc • 2025-02-07)
Exhaust abilities can be activated any time you could normally activate an ability.
(wotc • 2025-02-07)
If an effect causes Winter to become an artifact, its second ability will cause it to gain a second instance of ward.
(wotc • 2025-02-07)