Does casting Primal Strength on Bilgewater Bully trigger its Ganking ability?

Ruling: No, Primal Strength does not trigger Ganking on Bilgewater Bully because Primal Strength does not use the "buff" mechanic.

Nuances:

• Buff is a specific game mechanic with its own keyword
• Only effects that explicitly state they "buff" count as buffs for triggering abilities like Ganking