Rammus should leverage his high gank threat and taunt to punish Vi's early aggressive jungle pressure by targeting overextended lanes.
Prioritize avoiding direct early fights with Vi due to her faster clear speed and stronger dueling until armor scaling kicks in.
Jungle Plan
Path aggressively toward overextended AD-heavy lanes to maximize taunt gank potential before Vi can react.
Avoid full clears when Vi shows early river presence; instead, focus on opportunistic ganks and counter-jungling when lanes have priority.
Use cross-map ganks to exploit Vi's medium mobility and punish her if she commits to a side of the map without lane support.
Danger windows
Avoid river fights when Vi has her (Q) dash and (R) knockup available, as she can force unfavorable skirmishes.
Be cautious contesting objectives early without lane priority, as Vi's objective control and lockdown can secure smite fights.
Low-health clears and post-gank resets are vulnerable moments; avoid overextending without vision or lane support.
Early game
Start with a three or four-camp clear aimed at lanes showing overextension to maximize early gank impact.
Contest first Scuttle only if nearby lanes have priority and can assist to avoid getting outpaced by Vi's high clear speed.
Ward defensively against Vi's early river pressure and be ready to counter-gank when Vi commits to ganks.
Power spikes
Rammus spikes after completing armor items and gaining reliable taunt lockdown; use this to force fights against Vi's physical damage.
Vi's early level 3 and 6 power spikes with (Q) and (R) require Rammus to respect her lockdown and avoid isolated fights.
Rammus's (Q) rolling engage is a key power spike to initiate ganks before Vi can fully engage or escape.
Win conditions
Convert early gank pressure and taunt lockdown into dragon and Rift Herald control with lane priority.
Deny Vi free farm by invading camps when lanes are pushed and Vi is spotted on the opposite side of the map.
Scale into late game armor and taunt value to become a frontline lockdown threat that punishes Vi's physical damage reliance and enables teamfight control.
Tip: For Rammus vs Vi, read overview, trading pattern, and danger windows first for a fast Jungle lane check.
