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.
Combo: Dark Binding (stun) - Tormented soil (aoe) - Deathfire Grasp (item) - Soul Shackle (slow+Dmg+Stun)
With 8 sec CD on Stun from this item build allready at 3rd item, you will have Stun up right after ulti.
Deathfire Grasp is truely amazing on Morgana. It fits all here needs: Cooldown, AP, Mana regen and NUKE 30% of targets life instantly.
With low CD (cooldown) u can shield ur allies at all times, Stun with 8sec CD and Spam AoE for MASS gold Minion farming together with ur Tear of the Goddess.
Flahs for greath escape and just overall awsome positioning.
Teleport for ganking and support. Morgana is a great tower defender.
I wont bother with Runes-Masteries for this short guide. (I might update later..)