What the modifier does
At start of combat, Warriors gain 1000 (+500 per rank) lasting Shields. Backup.
At start of combat, Warriors gain 1000 (+500 per rank) lasting Shields. Backup.
At start of combat, Warriors gain 1000 (+500 per rank) lasting Shields. Backup.
Base means the hero always has access to that class pool. “Via” means the named Rank B specialization must add the class first.
Search guide notes and complete formations for actual upgrade choices and tradeoffs.