Using Meteor

Whenever I use meteor, it keeps saying I don't have enough MP. The description says the skill requires 4900 MP to use it, but it wouldn't allow me to use the skill when my MP is around 7500. I have level 20 meteor.

 

Same with Blizzard.

 

Element Amplification
Master Level: 30
Type: Passive

Description:
Use more MP, but Increase Magic Attack.
Level 1: MP -105%; Magic attack +107%
Level 2: MP -110%; Magic attack +109%
Level 3: MP -115%; Magic attack +111%
Level 4: MP -120%; Magic attack +113%
Level 5: MP -125%; Magic attack +114%
Level 6: MP -130%; Magic attack +115%
Level 7: MP -135%; Magic attack +117%
Level 8: MP -140%; Magic attack +119%
Level 9: MP -145%; Magic attack +121%
Level 10: MP -150%; Magic attack +123%
Level 11: MP -160%; Magic attack +125%
Level 12: MP -155%; Magic attack +127%
Level 13: MP -165%; Magic attack +129%
Level 14: MP -160%; Magic attack +131%
Level 15: MP -170%; Magic attack +133%
Level 16: MP -165%; Magic attack +135%
Level 17: MP -175%; Magic attack +137%
Level 18: MP -170%; Magic attack +138%
Level 19: MP -180%; Magic attack +139%
Level 20: MP -175%; Magic attack +140%
Level 21: MP -185%; Magic Attack 141%
Level 22: MP -180%; Magic attack +142%
Level 23: MP -190%; Magic attack +143%
Level 24: MP -185%; Magic attack +144%
Level 25: MP -195%; Magic attack +145%
Level 26: MP -190%; Magic attack +146%
Level 27: MP -205%; Magic attack +147%
Level 28: MP -200%; Magic attack +148%
Level 29: MP -195%; Magic attack +149%
Level 30: MP -200%; Magic attack +150%

You need 9800 MP to use it.