This is my first post of Building around a random Commander from EDHREC, and I got Sakashima the Impostor.

https://edhrec.com/commanders/sakashima-the-impostor
https://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=74509
The Card reads as Follows:
- Sakashima the Impostor
- 2UU
- Legendary Creature – Human Rogue
- As Sakashima the Impostor comes into Play, You may choose a creature in play. If you do, Sakashima comes into play as a copy of that creature, Except its name is still Sakashima the Impostor, it’s still legendary, and ir gains “2UU: Return Sakashima ghe Impostor to its owner’s hand at emd of turn.”
- 3/1
Deck
Color identity: U
Tribes:
- Human
- Zombie
- Any (due to copy ability)
Themes:
- Copy Everything
- Control
- ETB
- Mill?
- Combo
- ???
CEdh Sakashima without using other lists
- 12 cards of Ramp
- Chrome Mox
- Jeweled Lotus
- Lion’s Eye Diamond
- Lotus Petal
- Mana Crypt
- Mox Amber
- Mox Diamond
- Sol Ring
- Mana Vault
- Basalt Monolith
- Thought Vessel
- Mind Stone
- 10 cards of Target removal
- Cyclonic Rift
- Counterspell
- Force of Will
- Force of Negation
- Hullbreaker Horror
- Pact of Negation
- Arcane Denial
- Fierce Guardianship
- Gilded Drake
- Pongify
- Rapid Hybridization
- Flusterstorm
- Brazen Borrower // Petty Theft
- Mana Drain
- 4 Mass Removal
- Cyclonic Rift
- Ugin, the Spirit Dragon
- 10 Card Advantage
- Rhystic Study
- Mystic Remora
- Narset, Parter of Veils
- Jace, the Mind Sculptor
- Windfall
- Braingeyser
- Sensei Divining Top
- Blue Sun’s Zenith
- Timetwister
- Sphinx of Enlightenment
- 35 Land
- Academy Ruins
- Ancient Tomb
- Boseiju, Who Shelters All
- Crawling Barrens
- Glasspool Shore // Glasspool Mimic
- Halimar Depths
- Homeward Path
- Jwari Ruins // Jwari Distruption
- Mirrorpool
- Urza’s Saga
- Other synergies
- High Tide
- Omniscience
- Snapcaster Mage
- Mystical Tutor
- Leyline of Anticipation
- Flash
- Great Whale
- Walking Ballista
- Time Warp
- Phyrexian Metamorph
- Tezzeret the Seeker
- Archaeomancer
- Lier, Disciple of the Drowned
- Codex Shredder
- Thassa’s Oracle
- Spellskite
- Rings of Brighthearth
- Teferi, Mage of Zhalfir
- True-Name Nemesis
- Vendilion Clique
- Temporal Manipulation
- Staff of Domination
- Dramatic Reversal
- Laboratory Maniac
- Capture of Jingzhou
- Isochron Scepter
- Palinchron
And thats 100 Cards. Now I should probably check a bit how well would all these work together and see why cards doesnt work together, but instead I’m gonna hit this to Moxfield and then comapre to CEdh list other people have worked at to see what did I miss.
Well before I start going further, I can confess that I do not have lot of experience with CEdh and I know this deck lacks focus, ATM this deck tries to Control until he wins be Lab Maniac/Thassa’s Oracle or with Inf Mana removes players with Breingeyser or Blue Sun’s Zenith.
https://www.moxfield.com/decks/8SK2w1Wu7EqmULTE6msz6A
Now then Checking some stats from EDHrec, there is only 150 decks with Sakashima as Commander, which takes him to rank #805 (as I’m writing this)
From top Combos I didn’t realize to include Deadeye Navigator, that allows easier infinite mana, I also didnt include Peregrine Drake only the 2 ‘big brothers’
Swan Song I also left out that would be good addition to combo pieces, God-Eternal Kefnet seems to also combo for infinite turns so that would be good addition. Memnarch a 1 card that wins games if you have inf mana should also be included in deck. Narset’s Reversal seems quite synergetic with other cards in this deck
- This deck seemed quite competetive, yet Solemn Simulacrum gave away that it needs some fine tuning.
- https://edhrec.com/deckpreview/2fhLkTskQaaJ26Ps4br0Fw
- This was another good list, that reminded me that I should have added all the fetches as well
- https://edhrec.com/deckpreview/7VALpKs-RtTzCV4iUNzrLw
- This was supposedly Counterspell deck
- https://edhrec.com/deckpreview/2bocbsM_7zrxYcA7jTgK9A
So lets see after looking at these lista I’d like to include:
- Swan Song
- Narset’s Reversal
- God-Eternal Kefnet
- Dead-Eye Navigator
- Peregrine Drake
- Spark Double
- Memnarch
- Grim Monolith
- Aetherflux Reservoir
And for better manabase add
- Crucible of Worlds
- Misty Rainforest
- Polluted Delta
- Seat of the Synod
- Mystic Sanctuary
- Vesuva
- Tolaria West
- Strip mine
- Scalding Tarn
- Flooded Strand
- Wasteland
So to remove 10 nonland cards and 10 Islands:
- Flash
- Omniscience
- Mind stone
- Vendilion Clique
- Flusterstorm
- Timetwister (Shuffling Graveyard to Deck is not something we actually want)
- True-Name Nemesis
- Brazen Borrower // Petty Theft
- Laboratory Maniac
- Thassa’s Oracle
So these changes leave out the possibility of winning with Lab Maniac or Thassa’s Oracle and put’s more focus on winning with unlimited turns/mana/draw
Our comboes are
Inf mana
- Dead-Eye Navigator + Peregrine Drake + Min 3 lands
- Dead-Eye Navigator + Palinchron + Min 3 lands
- Dead-Eye Navigator + Great Whale + Min 3 lands
- Isochron Scepter + Dramatic Reversal + Min 3 mana from artifacts
- Palinchron + High Tide
- Hullbreaker Horror + Mana Crypt + Lotus Petal/Jeweled Lotus/Lion’s Eye Diamond/Sol Ring/Mana Vault/Basalt Monolith/Thought Vessel/Grim Monolith
- Hullbreaker Horror + Lotus Petal + Sol Ring/Mana Vault/Basalt Monolith/Grim Monolith
- Hullbreaker Horror + Mox Amber + Mana Crypt/Lotus Petal/Jeweled Lotus/Lion’s Eye Diamond/Sol Ring/Basalt Monolith/Grim Monolith + Legendary Creature
- Basalt Monolith + Rings of Brightheart
Inf turns
- Jace, the Mind Sculptor + God-Eternal Kefnet + Time Warp/Capture of Jingzhou/Temporal Manipulation
- Archaeomancer + Deadeye Navigator + Time Warp/Capture of Jingzhou/Temporal Manipulation
- Isochron Scepter + Narset’s Reversal + Time Warp/Temporal Manipulation/Capture of Jingzhou
- Hullbreaker Horror + Archaeomancer + Time Warp/Temporal Manipulation/Capture of Jingzhou
Inf Tokens
- Isochron Scepter + Dramatic Reversal + Swan Song + Phyrexian Metamorph
Inf Damage
- Isochron Scepter + Dramatic Reversal + Swan Song + Phyrexian Metamorph + Aetherflux Reservoir
- Scepter + Dramatic Reversal + Aetherflux Reservoir
Mana dumps that win the game if Inf Mana
- Walking Ballista
- Staff of Domination
- Memnarch
- Braingeyser (Need to play 1/opponent)
- Blue Sun’s Zenith
So to summirize, combo pieces are
- Walking Ballista
- Staff of Domination
- Memnarch
- Braingeyser
- Blue Sun’s Zenith
- Isochron Scepter
- Dramatic Reversal
- Swan Song
- Phyrexian Metamorph
- Aetherflux Reservoir
- Narset’s Reversal
- Capture of Jingzhou
- Temporal Manipulation
- Time Warp
- Deadeye Navigator
- Archaeomancer
- Jace, the Mind Sculptor
- God-Eternal Kefnet
- Great Whale
- Palinchron
- Peregrine Drake
- Hullbreaker Horror
- Mana Crypt
- Lotus Petal
- Mox Amber
- Grim Monolith
- Jeweled Lotus
- Lion’s Eye Diamond
- Rings of Brighthearth
So cards not used in Combos are
- Crucible of Worlds
- Spark Double
- Snapcaster Mage
- Mystical Tutor
- Leyline of Anticipation
- Spellskite
- Teferi, Mage of Zhalfir
- Lier, Disciple of the Drowned
- Codex Shredder
- Sensei Divining Top
- Sphinx of Enlightenment
- Pact of Negation
- Arcane Denial
- Fierce Guardianship
- Gilded Drake
- Pongify
- Rapid Hybridization
- Mana Drain
- Mox Diamond
So to finetune this deck, I’d drop out
Spark Double for Mercurial Pretender which works as another way to get infinite if you have one of the Great Whale/Palinchron/Peregrine Drake
I’ll also change Rapid Hybridization for Snap as it can go infinite with Archaeomancer and High Tide
Another small change that I’d do is to change Leyline of Anticipation to Vedalken Orrery as this deck has better support to Artifacts than Enchantments, while playong both wouls give more redundanxy to cast Commander as Instant and return back each turn, I don’t know what else I would cut, and if that would make so big difference.
I’d still like to add Clever Impersonator, as it can double as another Isochron Scepter but I don’t know what else would I cut, so I think I’d call this deck ready until it has some playtesting done.
https://www.moxfield.com/decks/_gWZWETUtUO-YwcJlEc-Pw here’s a link to Final deck list
So that would be this blogs first CEdh deck, I’ll next brew a casual budjet version of Sakashima.
I put this deck also to Tapped Out to get some stats, and according to it, the average manacost on this deck is 2.88

On last thought I really think Lion’s Eye Diamond is wasted in this deck, in theory it works as extra card to go inf mana with Hullbreaker Horror, but Ornithopter could do that just as well. Probably would change it out but for now the deck is good as is.