Just bought a pack and replaced a bunch of budget charms. All these are on MP:

1fg - Fire
lvl 0 (T3)
53% EE

1fg - Ice
lvl 5
72% EE

2fg - Wind
lvl 15
92% EE

75fg - Ice
lvl 30
106% EE

150fg - Fire
lvl 40
122% EE

15fg - Ice
lvl 35
83% EE

125fg - Ice
lvl 50
118% EE

30fg - Fire
lvl 50
87% EE

100fg - Wind
lvl 55
100% EE