If an opponent moves one character to attack a controlled battlefield, assigns damage, then moves another character to deal what would be lethal damage, does cleanup occur between these combats to heal the defending units?

Ruling: Yes, cleanup occurs at the end of each combat, healing all units. Therefore, damage from the first combat would be healed before the second combat begins, potentially preventing lethal damage.

Sequence:

• First character moves and attacks the battlefield
• Damage is assigned
• Cleanup occurs, healing all units
• Second character moves and attacks
• Damage is assigned to now-healed units

Nuances:

• Multiple units can be moved simultaneously to the same destination to deal combined damage in a single combat (avoiding the cleanup between attacks)
• Units can be moved simultaneously even from different locations as long as their destination is the same
• This simultaneous movement rule applies to standard moves; moves via card effects only follow the restrictions stated on the effect itself