Can exhausted units enter combat if moved by a card effect?

Ruling: Yes, exhausted units can enter combat if they are moved there by card effects. Being exhausted only prevents regular movement, not movement by other methods.

Nuances:

• If the attacker does not have enough might to kill all units on the opposing side of the battlefield, all units that don't die get recalled to base in the state they were at before the recall.
• When using Yasuo's Unforgiven effect to move a unit to combat, only one unit can be moved (unless other effects like Stealthy Pursuer allow additional units to follow).