[Endoperez]

Eventually Abysia will research Evocation 8 and have access to range 100 Pillar of Fire, so that they can use the same trick against anyone who isn't fire-immune yet.

If Caelum has Storm up (negating fliers, which Abysia shouldn't have too much trouble getting), having fast-moving troops, probably some kind of cavalry, would help.

The rules for retreating could also cause trouble for Caelum. In either Dom2 or Dom3, all-bodyguard forces run away much sooner than normal armies, but I don't remember the details.