I don't have any major feelings either way on letting silkster make the swap, but it sounds like that's not something thats been allowed in the past, so maybe we stick with that for consistency's sake.
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1. Asthereal (TO): Leyline of Anticipation, Lotus Petal, Lotus Petal, Grand Arbiter Augustin IV
Everything I'm doing here lines up well. WW
6-0
2. alphastryk: Leyline of the Void, Leyline of Singularity, Karakas, Tethered Griffin
This is me!
3. Wrath of Pie: City of Traitors, Karakas, Eternal Scourge, Ratchet Bomb
Eternal Scourge is good tech. Ratchet bomb eventually removes my leylines, which also kills the Griffin, and then the scourge kills me. LL
0-6
4. Tylert: City of traitors, Sphere of resistance, Heap doll, Chronomaton
OTP: I play my guy before the sphere hits, and Karakas bounces any guy you play forever. W
OTD: You play your sphere out first, so I'm never able to play my guy. Karakas still bounces your guys forever though, so I think this is a draw. D
4-1
5. H: Lotus Petal, Lotus Petal, Crack The Earth, Legion's Landing
OTP: I play out my Griffin, the pass. You lose one petal into the Leyline to cast Crack the Earth, and I think I just sacrifice the Leyline of Singularity since I'll win the race vs 1 token even with it having lifelink. W
OTD: You get to Crack the Earth when I only have 2 Leylines in play, and racing is much harder since your tokens have lifelink. If I sacrifice The Void, I lose both to Crack the Earth anyways, so I still sacrifice my Singularity to keep The Void. Being On the draw however, I can't race 1 token due to lifelink so I have to leave my larger creature on blocking duty. D
4-1
6. Moosedog: Mage-ring network, City of traitors, Chronomaton, Walking ballista
I guess this comes down to whether you can make a big enough Ballista to shoot me before my Griffin attacks take care of you. (If you ever try to shoot the griffin, I just bounce it). OTP Griffin kills on my turn 11, and OTD on my turn 12. To make a big enough Ballista, you have to charge the network 38 times I think, which is always too slow. WW
6-0
7. Silkster: Leyline of Singularity, Karakas, Cenn's Tactician (or Clergy of the Holy Nimbus), Leyline of the Void
The "mirror"! We stare at each other a lot, and compare mediocre white one-drops. DD
2-2
8. FTW: City of Traitors, Chalice of the Void, Steel Overseer, Steel Overseer
OTP: I play out by guy before you get Chalice down, and Karakas takes care of your guys. W
OTD: You get a Chalice before I can play Griffin, so I can never get Griffin. Karakas still answers your guys though. D
4-1
9. GoblinSmashmaster: Leyline of the Void, Swamp, Duress, Chronomaton
Duress and Leyline don't interact with Tethered Griffin and Karakas, so I'm able to keep my guy and bounce yours. WW
6-0
Total: 32
Oh - and for fun, here's my "big mana" deck instead of the metagame deck I ended up playing:
Lotus Petal, Phyrexian Walker, Culling the Weak, Myojin of Night's Reach