20-2 UTOPIA IS OVER THERE
20-2 Utopia is Over There is the 2nd stage of 20 — Silk Road. Previous stage: 20-1 Gandara's Rest. Next stage: 20-3 Godiego Pass.
A Metal wall: Sir Metal Seal boss plus Super Metal Hippoe — crit cats essential.
Sir Metal Seal is Metal — normal hits do 1 damage; only Critical or Toxic damage gets through.
Critical is a chance, not a guarantee — lead with 100%-crit or Toxic units; low-crit ones are slow backups.
CRAZED MONEKO A Reliable Critical hits punch through Metal. 
GLASS CAT A Toxic damage ignores Metal armour. 
CHEERLEADER CAT A Reliable Critical hits punch through Metal. Also fits “Out-range Sir Metal Seal.” 
TECOLUGA S Reliable Critical hits punch through Metal. Also fits “Out-range Sir Metal Seal.” 
HIGH LORD BABEL S Toxic damage ignores Metal armour. 
BRAINWASHED FISH CAT A Toxic damage ignores Metal armour. 
Sir Metal Seal reaches 150 range. Units that out-range it can chip safely without taking hits.
GROSS CAT A Range 350 — fires from beyond its 150. 
MASTER URIL A Range 405 — fires from beyond its 150. 
AKU RESEARCHER A Range 400 — fires from beyond its 150. Also fits “Crack the Metal.” 
BACKHOE CAT A Range 350 — fires from beyond its 150. Also fits “Crack the Metal.” 
CAT CLAN HEROES S Range 350 — fires from beyond its 150. Also fits “Crack the Metal.” WIKI PICK = listed on the stage's Battle Cats Wiki page; COMMUNITY = found by title, channel and date. Neither is verified by Claws' Den. Nothing loads from YouTube until you press play. Find more on YouTube ↗
The castle you destroy to clear the stage.