Full Crit Amumu build with runes and items. Full Crit Amumu guide offers in-depth how-to play, skill order and tips. Play Full Crit Amumu build in League of Legends Patch 25.05!
You go in and play around Hail of Blades to burst enemies.
You back away and wait for Hail of Blades. Repeat.
This build works best if enemy team has squishy champions. If you are against a lot off-tanks/bruisers, this might not be best build. You can make it work, however, by rushing Lord Dominik's Regards.
How to play
General
This build shines with 100% crit. You will instakill squishes. Until that, it might be challenging to 100-0 anyone. Look for opportunities to go in and score kills. Also focus on farming minions if possible (to scale faster).
Wait for your moment to go for a kill. You have a big burst thanks to Full Crit and Hail of Blades, but you are squishy. And outside of Hail of Blades procs (especially early game) you don't have much damage.
Snowball / Mark is an essential cooldown for this build. Do not waste it or even wait to hit the enemy at point-blank range to ensure hit (so you follow them, if they Flash).
Enemy team might not check your items right away, you could use that for your advantage to nuke unsuspected enemy.
After they checked your items and noticed that you have damage and are squishy, they are going to target you in fights. Be careful, after early game probably you need to modify your playstyle and stay back and wait for a good moment to join fights.
If they have tons of CC, get Mercury's Treads, Edge of Night or even Mercurial Scimitar to counter that.
If you are not doing well, or an enemy team is slightly ahead, you can adapt and buy tank items. Worst case scenario, you can sell everything late game and 'respec' into full tank.
Tips and Tricks
Champion
You have great engaging tools - Bandage Toss (Q) and Curse of the Sad Mummy (R)! Always play with the team and do not be shy and do not wait for 'special moment'!
You can pretend to face another direction / go another direction to land easier Qs.
Simple and easy, but excellent combo that wins fights is: Bandage Toss (Q) or Mark (Snowball) to a minion + Flash into an enemy team + use Curse of the Sad Mummy (R).
Riot
Amumu is highly dependent on teammates, so try laning with your friends for maximum effectiveness.
Cooldown Reduction on Amumu is very strong, but it's often difficult to itemize for it. Grab the Golem buff whenever possible to gain Cooldown Reduction without sacrificing stats.
Despair is very effective against other tanks, so make sure you're in range of opponents with the highest Health.