Town Hall 11 and 12 are where every small mistake starts costing real progress. You attack daily, war constantly and one weak layout can mean lost stars, lost wars, and wasted upgrades. This is the phase where bases stop being cosmetic and start becoming strategic tools.
These mid game war layouts are built for consistency not one lucky defense, but repeatable results across wars, CWL and daily attacks. They focus on forcing pathing, breaking funnels and delaying troops long enough for defenses to do their job.
At this level, attackers understand funneling, spell timing and hero value. If your layout allows easy pathing or fast access to core then it will fail repeatedly. Good bases break funnels, waste spells and turn clean attacks into 1-2 stars.