When Teemo's Strategist ability triggers against a unit with Deflect (like Deadbloom), does he pay the Deflect cost for each point of damage dealt? Also, does Ahri pay Deflect cost when targeting Deadbloom with her -2 ability?

Ruling: Teemo pays Deflect once when targeting a Deflect unit, not for each point of damage, because he deals all damage as a single X damage instance (where X is the number of revealed hidden cards). Ahri also pays Deflect once when targeting Deadbloom.

Nuances:

• You can target a Deflect unit and choose not to pay the Deflect cost, which prevents the ability from finalizing on the chain (the ability does nothing)
• This applies to must-effect abilities, allowing you to technically target without paying