Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Marks: to increase my dmg
Seals: Im taking dodge there because I cant find a better rune to that spot.
Glyph: CD reduc, what to say there, always nice to have some CD reduc.
Quintessence: Healt runes, nice to have some more hp, in early gmae.
I put 9 in offense, so i can get Archaic Knowledge, to improve Tantrum, Despair and Bandage Toss, the rest of point is in Utility, so he dossent have mana problems and and gets Utility Mastery to increas the duration of monster buff (pretty importen becuase you want to get the golem buff as often you can)
The item i choose as the last ones is with AP, when i frist have 2x sunfire cape and one Abyssal Secpter, I normaly never gets problems with dmg, so thats why I like to get Rylai´s Crstal Scpter, its the passiv effekt thats pretty cool to Amumu, it reduce 35% (15% for multi-target spells) moven speed when you use a spell, and in a fight you normaly always have Despair enabled.