Most level 3 rushes have a way to deal with Urgrant.
Lawtia: Urgrant depends on floating SP, meaning you'll most likely be able to hit 2-3 shades. Couple that with attack damage from your undead tank (or at the least an md augment) and soul skills, and Urgrant's going to have a bad day.
Gowen: Urgrant has 50 HP. Sala+SS=dead Urgrant. Salas then chump block for your level 3s and trigger another SS.
Falkow: This is a case in which you have to have two level 3 units out, one being some sort of agility manipulator. Elite fencer comes in the starter.
Refess: SKs and buncles can race him on agility. Solar kingdom should set up row 2 and use level 1s to tank his rapier. If you're going to absolutely eat a rapier, raise your sphere level for a hand of god later in the game.