@The Treefolk Master:

Thanks for the answer!, yeah you are probably right about meekstone in Sneak Attack matchup, when I was sbing I thought: so... they play big dudes, meekstone in!!, but against a couple of them or a Sneak Attack is useless.

In which other pairings, besides reanimator, you find meekstone a great add to the 60??, GW to stop Knight of the reliquary?

Tamiyo, in my opinion, has the same disadvantage as Jace, is a planeswalker, so they can attack through an energy field, destroy it, and break the lock. Maybe her ability to tap guys could make this hard to occur, but i'm not sure, jace can also bouce and he doesn't fit in this deck for that particular reason.

Cursed Scroll deserves a try, it's both finisher and removal, but when the opponent is locked we start to stack stuff in hand so the scroll will get worse.