Forum:Mystical Space Typhoon vs Skill Drain ?

If I had a Beast King Barbaros on my side of the field, my opp declares an atk on BkB with one of his monster , I activate skill drain paying 1000 lp and my opp chain his Mystical Space Typhoon to my skill drain , does the effect apply to change the atk of my BkB to 3000 from 1900 before Sk destroys ? or it's does not apply at all ? Cause Skill drain are not like royal oppression right or .... i could me wrong ....

Btw I am using tcg not ocg .... and am I right that ocg rulings does not apply to tcg rulings unless it is stated in tcg rulings as well ?

thanks