Roster
Depends on your roster.
Counterattack
I recently got Boril and Obakan ( still lack Cyprian ). But Gryphonkit, my wife, loves her Cyprian and Obakan ( see notes ).
Damage from ally counterattack buff bypasses defense stat, and all defense buffs, including enemy counterattack buff. Not sure about reflect damage like 5* Titanium Shield.
Counterattack is a great ATTACK special skill. Basically shared damage is good versus snipers and counterattack is good versus Area Of Effort damage. But both need good timing, and healing, to make a huge difference.
The computer is just not smart enough to use healing, counterattack, and shared damage special skills effectively.
Cleric class quests
Piety ( Bosses= Boril, Friar Tuck, Joon )
Fortitude ( Bosses = Horghall, Vivica, Boril )
Counterattack is useful against physical/ slash attacks from the Bosses and ignores Boss Boril’s counterattack buff. Counterattack is very useful against Horghall’s special skill.
See also
Interesting but outdated
(ARCHIVE- How my wife broke Empires- not her first time breaking a game- or Purple and Yellow are weird when attacking, especially in raids)
Interesting but outdated