Every Undead army has warriors to hold the front line, and sadly this champion is one of them! Skullsquire is an Uncommon Attack champion from the Undead Hordes Faction.
Although the Hard Mode Fire Knight is excessively hard to counter, on paper this Uncommon has a good kit for this boss! The highlight would be the A2, where he simply places a Freeze Debuff on the attacker when under Decrease Speed. This is what players need in order to manipulate the Turn Meter of the boss, however only end game champions currently are able to survive the onslaught due to its difficulty, therefore Skullsquire will not be viable with zero multi-hit skills. In a more general scenario, he also places a 15% Decrease Speed & 30% Decrease Defence on single targets, which may be useful for Faction Wars progression.