It sounded like dadejay was trying to 'negate' the 'Giant Trunade' so no cards were returned to the hand.
I'm sure EVERYONE that posts here has tried to do that at one point in time during their Yugi 'training' before they understood the concept of 'negating' vs 'destroying'.
'MST' does not 'negate' anything, it only destroys. The cards listed by daivahataka are the correct cards to use 'MST' against.
Example:
Player A has a set 'MST'.
It's Player B's turn. Player B activates 'Premature Burial', pays the cost, and chooses the appropriate monster in their Graveyard (remember, the monster is merely chosen, not placed on the field at this time).
Player A can chain with 'MST' and target 'Premature Burial'.
Player B chooses not to respond.
The chain resolves in reverse order.
'MST' resolves, destroying the 'Premature Burial'.
Since 'Premature Burial' is no longer on the field, it's effect 'dissapears' and no monster is special summoned to the field.
Hope this helps.