I just played in Dülmen Workshop Slaver and I did quite well.
For reference here is what I played :
// Mana // - 27
4 Volcanic Island
2 Shivan Reef
2 Polluted Delta
1 Island
1 Ancient Tomb
1 Tolarien Acadamy
4 Mishra's Workshop
1 Mox Sapphire
1 Mox Ruby
1 Mox Pearl
1 Mox Jet
1 Mox Emerald
1 Black Lotus
1 Mana Vault
1 Mana Crypt
1 Sol Ring
3 Gilded Lotus
// Draw // - 14
4 Brainstorm
4 Thirst for Knowledge
1 Memory Jar
1 Tinker
1 Wheel of Fortune
1 Timetwister
1 Ancestral Recall
1 Time Walk
// Protection // - 8
4 Force of Will
4 Chalice of the Void
// Prison Components // - 7
3 Mindslaver
4 Goblin Welder
// Beatdown / Utility // - 4
1 Memnarch
2 Pentavus
1 Platinum Angel
SB:
3 Trinisphere
2 Blood Moon
3 Rack and Ruin
2 Gorilla Shaman
2 Triskelion
1 Platinum Angel
2 Red Elemental Blast
Short report :
1.Round - Oshawa Stompy
Game 1 : Despite a Turn 2 Null Rod I smash face with my Platinum Angel
Game 2 : Chalice for 2 is so good. Infinite mindslaving wins shortly after the game.
1-0, 2-0
2. Round - BUG Reanimator
Game 1 : 1 First Turn Mindslaver and 2. Turn activation is some good.
Game 2 : He plays Akroma and brings me down to 3 live. Then Memnarch arrives and invites Akroma to beat her former Master to death.
2-0, 4-0
3. Round - my friend playing Workshop Slaver
We draw and go for lunch.
2-0-1, 5-1
4. Round - BUG Grow
Game 1 : I have an average start with chalice 2. He goes crazy with Ancest, Deed and Will - you can't beat God hands
Game 2 : I have 1. Turn Gilded Lotus and play Blood Moon. But he has all the Moxen he needs. I still feel confident when he plays Ground Seal and Damping Matrix because I sided out all my Welders. Then again he goes crazy with Lotus, Ancest, Walk, Will - You cant beat God Hands.
2-1-1, 5-3
5. Round - Control Slaver
Game 1 : I mulligan an hold a hand with 4 lands Chalice and Brainstorm. The brainstoms shows .... 3 more lands. After Chalice for 2 which is countered I didn't do much more.
Game 2 : I slave him an Turn 4. He just played a Welder and I recur my Slaver Turn by Turn with his Welder. - thanks (I sided out my Welders)
Game 3 : I play chalice for 2 and 3. Later I smash face with Triskelion and Pentavus.
3-1-1, 7-4
6. Round - Keeper
Game 1 : I play threat after threat - he counters some and removes the others. Then I can resolve Memnarch and go in Beatdown/Stealing Modus.
Game 2 : He plays 2. Turn Exalted Angel. I go down to 3 live, then I resolve Platinum. He continues to beat me but can't get rid of my Angel. Then I resolve Blood Moon, Chalice for 0 and Chalice for 3 wich is game, because he can't remove my Angel anymore.
4-1-1, 9-4
7. Round - UR-Phid
Game 1 : I resolve Chalice for 2 but he has Gorilla Shaman. Then I find Pentavus and start beating him. Later I resolve Mindslaver and I am able to screw him while Pentavus is still attacking .
Game 2 : I He has 2 Ophidian and again this pesky Gorilla Shaman, but I have lots of expensive artefacts and 2 Welder. He fires my Welders and destroys all of my artefacts except a Gilded Lotus. I topdeck another Welder and use a saved Mox in my hand to turn it into a Slaver. In his Slaver Turn I use the Ophidians to find Ancestral ...... he scoops.
5-1-1, 11-4
MVP's of the Day:
Chalice 2
Platinum Angel
Memory Jar
thoughts :
The Manabasis is pretty strong, although I really missed the 4. Gilded Lotus. We tested a Version with 4 bevor the Tournament, cutting Time Walk, but we decided to stick with the Walk because of the already low count of blue cards to reliably use Force of Will. Now I will probably cut the 3. Mindslaver to include the Lotus.
I feel that this Deck should abuse Workshop as much as it can. Therefore we included 4 maindeck critter to play more often the beatdown role. So either you can play Chalice for 2 or you play Mindslaver or you play a Fattie or you play a Draw7. That puts alot of pressure on your oppenent in the first 3 turns. Often this onlaught he can't handle.
The lonely Island was gold after boarding Blood Moons or against heavy landestruction.
I understand that in field of heavy control decks some of the more controlish cards like Fact or Fiction or Library of Alexandria are superior, but in a broad field it is better to play more threats. I always wanted to do something broken in the first turns and not sit down and draw cards from LoA. Fact just costs 4 Mana wich is pretty bad without Gilded Lotus.
I often read the argument that workshop slaver dies to Nullrod. I did not make the experience. First you still have Chalice. If not, just play a big Guy smash face with him. I didn't even side in my artefact removal against e.g. Oshawa Stompy. Just bring all your fatties let them do the dirty work for you.
Btw - the Platinum Angel won me 3 games where my life was below 0.
Maybe it is just me, but I see Workshop Slaver as a Aggro Control Deck wich can go Combo. But the Aggro strategie is far more often used.
Some people say that they had to mulligan very often. - again not in my experience. Because of the Brainstorms you smooth your draws and the higher amount of artefacts in our build guarantee the use of all the (workshop) mana you pack.
Regarding the matchup Control Slaver vs. Workshop Slaver :
I cant see why it should be in favour of Control Slaver.
Chalice for 2 hurts them pretty much. They can't counter all your early threats. ( they have to counter or remove Gilded Lotus, Chalice, Welder, and your big Guys). You draw as much cards as they, but you can utilize them earlier, which is a big advantage. After Boarding you bring in more Fatties, Shamans and REBs. I'm always pretty confident to win the matchup.
Future:
I can see dropping 1 Pentavus in favor of a Sundering Titan, although that means altering the Manabasis a bit.
In the Sideboard I will add BEB because of Rack and Ruin and Gorilla Shaman and a Trisklion might become a Duplicant.
Trinisphere will go out, if 2-Land-Belcher dies out in Dülmen.
opinions ?