Rammus

Arena changes

• Q: Bonus movement speed changed to 50 to 75.
• Q: AP ratio changed to 150% AP.
• Q: Cooldown changed to 11 to 5 seconds.
• E: Taunt and bonus attack speed duration changed to 1.6 to 2.4 seconds.
• R: AP ratio changed to 100% AP.
• R: Cooldown changed to 40 seconds.²

Cooldown changed to 12 / 10.5 / 9 / 7.5 / 6s in patch 26.19 (was 11 / 9.5 / 8 / 6.5 / 5s)³

• Reverberation and Mystic Punch are recommended together for repeated Q casts, with Essence Reaver to sustain the mana cost.⁴

• With Protein Shake and Sword of the Blossoming, a full-resistance Rammus build gains attack speed from W and heals teammates with attacks; the build has potential.⁵⁶
• Reverberation and Mystic Punch can let Rammus repeatedly cast Q and keep an opponent under crowd control.⁷⁸

Earlier formats

• Rammus's taunt could interrupt a Vladimir player using Zhonya's Hourglass during W; another taunt had to land between W and Zhonya's Hourglass, with frame-perfect timing.⁹¹⁰ 8x2 duos
• AP Rammus struggled against tanks even with buffed ability scalings.¹¹ 8x2 duos
• Rammus could pair Slow and Steady with a full AP and movement speed build and spin Q for damage.¹² 8x2 duos
• Slow Cooker was paired with Rammus.¹³ 8x2 duos
• Rammus was paired with Twin Mask.¹⁴¹⁵ 8x2 duos