quicksilver
2.a quicksilver temper
4.A politician is like quicksilver; if you try to put your finger on him, you will find nothing under it.
5.7 Love is like quicksilver in the hand. Leave the fingers open and it stays. Clutch it, and it darts away.
6.erratic behavior; fickle weather; mercurial twists of temperament; a quicksilver character, cool and willful at one moment, utterly fragile the next.
7.While the Eternal Guard, Glade Guard and Tree Kin form the backbone of the army, quicksilver Dryads, Wardancers and beast riders slip around the flanks, unleashing deadly and swift attacks upon the opposing army.
