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+Build around the Upgrade: Thornmail hex. Use W's huge resists with Heartsteel and Warmog's for HP, then stack magic pen via Void Staff, Abyssal Mask, and forge. Once enemy MR is fully penetrated, Thornmail damage becomes near-true. Forge: magic pen > resists > HP. W also benefits from Jak'sho's % resist scaling. If enemies refuse to attack you, taunt with E to force the reflect.
- Combo rating · S tier
- Editorial assessment, not a win-rate metric.
- Guide provenance
- ARAM Mayhem editorial
- Combo patch
- Not recorded
- Guide freshness
- No update date recorded
- Champion tier · C
- From the site champion tier list.
- Champion tier context · Patch 26.19
- Updated Oct 6, 2026
About Rammus
About Upgrade Thornmail
Upgrade Thornmail
silver
Upgrades Bramble Vest and Thornmail, increasing the armor stat of both items by 25 and empowering Thorns to generate a protective shell around you that grants 25% damage reduction. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 to 250 (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage. Shell regenerates after 20 to 5 seconds of being out-of-combat.
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Upgrade Thornmail + Red Envelopes Rammus Combo
This S-tier combo pairs Rammus with Upgrade Thornmail in ARAM: Mayhem. This is one of the strongest combos available — pick it whenever you can.
Build around the Upgrade: Thornmail hex. Use W's huge resists with Heartsteel and Warmog's for HP, then stack magic pen via Void Staff, Abyssal Mask, and forge. Once enemy MR is fully penetrated, Thornmail damage becomes near-true. Forge: magic pen > resists > HP. W also benefits from Jak'sho's % resist scaling. If enemies refuse to attack you, taunt with E to force the reflect.