-3 Shield Worm
-3 Junk Synchron
+1 Morphing Jar
+3 Morphing Jar #2
+1 Sangan
+1 Necro Gardna
+1 Marshmallon
+1 Spirit Reaper
+1 Plaguespreader Zombie
-1 Swords of Revealing Light
+1 Level Limit - Area B
+1 Mystical Space Typhoon
-1 Royal Oppression (Keep those in the sideboard, trust me.)
-2 Starlight Road (Same here. Keep these in the Sideboard.)
+3 Desert Sunlight
+1 Mirror Force
+2 All-Out Attacks
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The basic strategy of mill decks is to stall and force your opponent into a deckout. You are not supposed to be able to win by any other method. That being said, most synchro monsters are inherently worthless being in the extra deck of a Mill deck. This is why I removed your tuners. I added in Plaguespreader Zombie in case, for some reason, you might somehow be able to pull something off, since he can revive from the graveyard.
Level Limit - Area B will stop a LOT of stuff from getting through. Not everything, but enough of it.
Desert Sunlight is basically a souped-up version of Book of Taiyou that also happens to be a Trap card. Always worth it.
Using All-Out Attacks in conjunction with Morphing Jar #2 can lead into a VERY nice Mill OTK. How it works is this:
-Activate All-Out Attacks
-Flip Summon Morphing Jar #2
-Activate it effect, adding all monsters on the field to the deck and summoning monsters face-down.
-All-Out Attacks's effect activates, flipping all face-down monsters face-up, which could include another Morphing Jar #2, Needle Worm, Morphing Jar, etc.
-Lather, Rinse, Repeat
-Insert token "????" and "Profit!" list gags here.
If you have any questions, feel free to ask.