Water Megan (Megan)

Megan (Water Mystic Witch) is one of the best natural three star monster Summoners War: she is used mainly for PvP and she is also  good for Dragon Dungeon B10.

Her first skill is puts continous damage on the target, her second skill removes one beneficial effect on the target plus blocks beneficial effects on the target and her third skill is an AoE buff to all allies increasing attack power, defense and attack bar by 20%. thanks for this last skill she is used as a sppedy buffer on arena increasing chance for your team to attack first.

She is used both on PVP attack and defense, mainly alongside with a AoE nuker like Lushen-Wind Joker (Megan increases his attack power and attack bar) and another speed buffer like Bernard-Wind Griffon to increase the chances your team plays first.

Megan has to be as speedy as possible, so the best rune set for her is Swift set and since first and second skill apply weakening effect on the target another suggested set is Focus set: also remind to use speed in position 2 and accuracy in position 6 to achieve a accuracy value as high as possible (70% is good). If you can reach such high accuracy with just substats you can instead use Energy rune set to make her tankier.

Suggested runes

All game: Swift/Focus or Swift/Energy - SPD / %HP / %ACC or SPD / %HP / %HP