Can Bellows Breath target the same unit multiple times with one cast to deal multiple damage to it?

Ruling: No, Bellows Breath cannot target the same unit multiple times. The spell deals 1 damage to up to three different units at the same location, where each target must be a distinct unit (though you can choose fewer than three targets).

Nuances:

• The wording "Deal 1 to up to three units" means you select up to three different units (X, Y, Z) where some can be null/not selected, but each selected target must be different
• This differs from "deal X damage divided among up to Y units" wording (like on Volibear), which would allow targeting a single unit with all the damage
• Bellows Breath deals discrete 1-damage instances to separate targets rather than distributing total damage