When a hero reaches 5 stars, they are added to the Wall of Honor, provided the corresponding hero-type building—such as the Missile Center, Tank Center, or Aircraft Center—is at level 20. Excess hero shards can be used to upgrade heroes in the Wall of Honor. Each hero provides a specific bonus through the Wall of Honor.
There is no level cap for the Wall of Honor. Every 50 levels, the hero-specific bonus increases by 0.25% to 1%, meaning the Wall of Honor can practically be upgraded infinitely.
When you promote a hero like Mason or Violet to UR rarity, the shards you previously used in their Wall of Honor are refunded.
Bonuses
Below is a table listing the bonus each hero provides in the Wall of Honor:
| Hero | Wall of Honor Bonus (every 50 Levels) |
|---|---|
Kimberly
 | +0.50% Attack |
|
Marshall
| +0.50% Defense |
|
Murphy
| +0.50% Health |
|
Stetmann
| +0.50% Defense |
|
Williams
| +0.50% Health |
Carlie
 | +0.50% Health |
|
DVA
| +0.50% Defense |
|
Lucius
| +0.50% Defense |
|
Morrison
| +0.50% Attack |
|
Schuyler
| +0.50% Attack |
Adam
 | +0.50% Health |
|
Fiona
| +0.50% Attack |
|
McGregor
| +0.50% Health |
|
Swift
| +0.50% Attack |
|
Tesla
| +0.50% Defense |
|
Mason
| +0.50% Attack as UR and +0.25% Attack as SSR |
|
Violet
| +0.50% Health as UR and +0.25% Health as SSR |
|
Monica
| +0.25% Health |
|
Richard
| +0.25% Defense |
|
Scarlett
| +0.25% Health |
|
Farhad
| +0.25% Defense |
|
Cage
| +0.25% Health |
|
Sarah
| +0.25% Defense |
|
Maxwell
| +0.25% Attack |
|
Braz
| +0.25% Attack |
|
Esla
| +0.25% Health |
|
Venom
| +0.25% Defense |
|
Loki
| +1.00% Troop Load |
|
Gump
| +1.00% Troop Load |
|
Ambolt
| +1.00% Troop Load |
|
Kane
| +1.00% Troop Load |