I don't know about the Workshop Slaver match, but I do know that Control Slaver usually beats Landstill.
I have good results against Control Slaver; however, most of the games were against randoms on MWS so i'll take your word on that specific matchup.
Because Landstill loses to good players.
Wouldn't this be a better comment? "[Insert Deck Name] loses to good players"
but For Serious, people, that deck is not the best thing to do with your Mana Drains by a longshot
This is true, the only thing you can do with a big mana drain is to activate manlands and play Disks for the most part. The power of Landstill falls not with it's brokeness but it's ability to adapt to any deck and be extremely resilient. For example, Slaver would have problems against a lot of artifact removal and Hulk would have problems against a lot of graveyard removal. Landstill has the tools to stop such things. Like Landstill isn't bothered much by decks that have a lot of mana denial, you have Stifle, Response and even Mis-D(against random LD decks, they do exist).
Mogg Salvage - which is played in addition to Rack and Ruins to destroy Disk. Also, memnarch is very good against Disk.
I have to admit, with Mogg, Rack, and Memnarch, Landstill in it's current form doesn't stand a great chance against MeanDecks current Slaver list. But also note that current Landstill decklists don't even have artifact removal in the sideboard. Landstill will now might have to SB such cards like Energy Flux and possibly Rack and Ruin would most likely bring the matchup back to where it was which was in Landstill's favor.
