Use Briar's high clear speed to maintain tempo and punish isolated Vi early before she can leverage her lockdown.
Focus on volatile lanes with priority to protect frenzy commits and avoid fights where Vi can kite or collapse with lane help.
Jungle Plan
Path toward lanes with strong priority to enable sticky engages using (Q) and (R) and protect against Vi's counter-ganks.
Invade only when you have solid exit info or lane priority, focusing on denying Vi camps and tempo before her level 6 spike.
Prioritize dragon and Rift Herald control after establishing tempo, using vision to force Vi into team fights where Briar's extended skirmishing excels.
Danger windows
Respect Vi's early invade windows around level 3 when her (Q) allows aggressive river plays and ganks.
Avoid isolated river fights without lane priority as Vi's (R) lockdown and (Q) knockback can force lethal skirmishes.
Be cautious contesting objectives if Vi's team has lane priority or if you lack vision, as forced smite fights favor her lockdown and objective control.
Early game
Start with a healthy full clear to keep tempo and look for early skirmishes around lanes that can move first.
Contest first Scuttle only if nearby lanes have priority to support counter-ganks against Vi's early river pressure.
Avoid fighting Vi early without vision or lane priority, as failed commits can be costly due to her lockdown and knockback.
Power spikes
Briar's power spikes come from healthy tempo enabling extended fights and cleanup with (Q) stun and (R) fear; use these to force fights on your terms.
Respect Vi's early level 3 when her (Q) dash knockback and damage peak, avoiding isolated fights without lane support.
Vi's level 6 lockdown (R) spike demands you avoid solo fights and play around lane priority to counter-gank or disengage with (E).
Win conditions
Convert healthy clear tempo and protected frenzy engages into snowballing through counter-ganks and objective control.
Use (Q) and (R) to create sticky picks in skirmishes, then clean up fights to secure dragons and Rift Herald.
Deny Vi free farm and scaling by invading with lane priority and forcing fights where you can outduel or disengage safely.
Tip: For Briar vs Vi, read overview, trading pattern, and danger windows first for a fast Jungle lane check.