Upgrade or alternative upgrade?

No one forbade confusing the enemy. When you swoop down with a griffin (royal), and watch how the archers/sorceresses scatter, your soul rejoices – the potential opponent couldn’t have expected that griffins would swoop down on the point where his nightmares ran to. In general, practice shows that both royal and battle griffins die at the same rate. And, as was aptly noted, royal griffins manage to inflict much more damage in that time than battle griffins.