While

is active, Rammus's autos extend its duration by 0.4 seconds, up to 4 additional seconds, and

deals 50% bonus damage.

's bonus attack speed duration refreshes while

,

, or

is active.

If

is cast during

, enemies in the center are also knocked up and dealt

's damage.

deals double damage to turrets.

Naturally counters auto attack-based champions and scales directly with how much Armor he has.

Excels at ganks with his CC tools.

and

double as escape tools.

Synergizes well with

,

,

,

, and

. Can opt for

for ramping damage.

Once Rammus has used his abilities, he's much less effective.

Struggles against champions who don't rely on their auto attacks.

ends after hitting any non-friendly unit, making it harder to maneuver around minion waves or to the backline during a teamfight.

Using

without

is significantly less impactful.