Exhaust abilities of other permanents you control cost {2} less to activate. Exhaust — {4}{R}{G}: Creatures and Vehicles you control gain trample until end of turn. Put two +1/+1 counters on this creature.
2025-02-07
Boom Scholar's first ability can cause the mana component of the cost to activate an ability to be {0}.
2025-02-07
Exhaust abilities can be activated any time you could normally activate an ability.
2025-02-07
If an ability triggers whenever you activate an exhaust ability, that ability resolves before the exhaust ability resolves.
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.