Bard excels at roaming, so pair him with self-sufficient ADCs (Sivir, Ezreal, Caitlyn) and focus on pressuring mid lane.
Utilize Bard's Ultimate (R) for objective control (e.g., freezing towers for Herald/Baron) or initiating/disengaging teamfights.
Electrocute is a standard rune, Solari is a strong first item, Bloodsong for support upgrade, and always ban Pyke.
Stats
Q
W
E
R