Here we see a staged battle scene inbetween two groves of trees on a very green and grassy tileset, taking a look at the mini-map, it is a very strange place for a battle to take place. Also on the minimap we can see various clusters of Creeps (black) surrounded around the Neutral Buildings (yellow), we also see a strange, seemingly specifically placed grey "thing" on the minimap, it could possible be walls, or maybe just some sort of rock.

In the actual game area of the screenshot we can see three Footmen and two Dwarven Mortar Teams backed up by the Hero Andromath (an ArchMage) and two Towers.

Leading the Undead assault is the might Frost Wyrm breathing out his beautiful looking frost breath, either side of him are two large explosions caused by presumable mishits from the Dwarven Mortar Teams. Behind him is the summon master - a Necromancer with a large group of summoned Skeletons (Archers and Swordsmen). Overhead, dominating the skies is a contingent of what are believed to be known as Carrion Birds, these undead minions are steeped in great mystery and as such, practically nothing is known about them except that they fly and they are part of the Undead.