For example, if a mage used a summoning catalyst for a servant limited to the archer, lancer, and caster classes, but the only servant yet to be summoned is the assassin class?
Last night, as part of a league I played a 1250 pt game against the most obnoxious renegade crowns list. It was basically:
A giant brick of veteran sellswords with phalanx, stubborn, and the no stomps banner joined by a general, a bsb with a banner that doubled his rank bonus, and a wizard with lore familiar (so he'll always have earthen ramparts) and 2 power scrolls.
A unit of skirmishers with various pistols and blunderbuss joined by a wizard double casting the summoning and popping steed if shadows whenever I tried to corner them
5 ambushing pistol cavalry
A great cannon
The big brick had like 10 combat resolution, constant earthen ramparts neutering my damage output, and I couldn't disrupt them with first charge or flanking. All the while I was being slowly whittled down by missile units I couldn't catch.
The whole game was an unfun slog and I have no idea how a melee army like WoC is supposed to deal with that.