This Level 5 Synchro prevents your opponent from activating card or effects until the end of Damage Step when it attacks or is attacked. 2300 ATK is really not that much, but that's what Paleozoic Hallucigenia is here for. If you activate your cards after Armades has declared an attack, your opponent will not be able to respond to them.
When it's Synchro Summoned, Junk Warrior gains ATK equal to the combined ATK of all Level 2 or lower monsters you control. Use Paleozoic Canadia and Paleozoic Hallucigenia to increase the ATK of this monster: if at least one of them is face-up on the field when it's Summoned, it will reach 3500 ATK.
Special Summon Junk Forward from your hand, Normal Summon Junk Synchron, Special Summon Dark Verger from your Graveyard and then Special Summon Junk Destroyer.
If you Summon Junk Destroyer using Junk Synchron and Junk Forward, it will allow you to destroy up to two cards on the field. Thanks to this effect, you will be able to get rid of high ATK monsters such as Koa'ki Meiru Maximus and Ancient Gear Reactor Dragon without having to use Paleozoic Hallucigenia.
Paleozoic Canadia can be used to flip problematic monsters such as Koa'ki Meiru Urnight and Ancient Gear Reactor Dragon face-down, giving you more time to set up. You can’t rely too much on Battle Traps in the current meta because of all the Ancient Gear and Koa'ki Meiru decks, so Paleozoic Canadia and Floodgate Trap Hole will usually be more effective than cards like Wall of Disruption and Drowning Mirror Force.
Paleozoic Hallucigenia will allow Armades and Junk Destroyer to get over all of the 3000+ ATK monsters that are around right now.
Synchro Summoning takes a lot of resources and usually doesn't produce enough of a payoff; although Junk Destroyer is a pretty powerful card, Summoning it is really not that easy. Thanks to this Skill, you don't need to set up the Graveyard for Junk Synchron and you can Synchro Summon even high-Level monsters such as the one I just mentioned with relative ease.
The only options this deck has when dealing with high ATK monsters are either using Paleozoic Hallucigenia to weaken them or Junk Destroyer to destroy them.
Sangan is the easiest way to search Junk Synchron and Junk Forward, but its effect will not trigger if an Ancient Gear Reactor Dragon or an Ancient Gear Wyvern destroys it.
An alternative Junk Synchro recipe uses the Armed Dragon engine to consistently summon Junk Destroyer using 3 cards to max out it's popping effect:
3 x Junk Synchron
3 x Ojamatch
3 x Ojama Blue (Lv2)
1 x Ojama Yellow (Lv2)
2 x Armed Dragon Lv3
3 x Desynchro
3 x Cosmic Cyclone
2 x TTH
Extra: Junk Destroyer + Armades
Skill: KC Bling (if you have a glossy Junk Synchron or Ojamatch), or just run Draw Sense: Dark to guarantee a Junk Synchron.
Clear backrow with CC. Play Ojamatch to discard an Ojama and normal summon Armed Dragon Lv3. Summon Junk Synchron, special summon Ojama from grave, synchro to Junk Destroyer, pop 2 cards, play Desynchro to repeat summon Junk Destroyer if you need to pop more cards. Swing. The opponent will be 2+ cards down so you'll have a huge advantage. If you have Desynchro, you can repeat the summon on consecutive turns to wipe their board again.
TTH helps if you brick and need to stall. Set Ojama Blue to search Ojamatch and set up for Junk Synchron. Run GC if you don't have CC.
Great concept. But it doesn't have any alternate wincons...
Evil Rick 7days ago
Atlantena Pikeman is a Lv2 with 1400 ATK
-Use him and Junk Synchron to Synchro Summon Junk Warrior
-When Junk SHyncron is SHyncor SUmmoned chain a card like Birthright & resurrect AtlanteaN Pickeman
-Junk Warrior's effect applies & now he has over 3300 ATK