Clanrat

Pack Tactics. The skaven has advantage on an attack roll against a creature if at least one of the skaven's allies is within 5 feet of the creature and the ally isn't incapacitated

Scurry. Skaven can quickly scamper away from danger. When the skaven takes the disengage or dash action, it gains an extra 10 feet of movement(up to a total of 40ft disengage/80ft dash) 

Keen Smell, The skaven has advantage on Wisdom(Perception) checks that rely on smell.

Longsword. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit: 5 (1d6 +2) slashing damage. 

Spear. Melee Weapon Attack: +4 to hit, reach 10 ft., 1 target. Hit: 6 (1d6 +2) piercing damage. 

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit: 4 (1d4 +2) piercing damage. 

Crossbow. Ranged Weapon Attack: +4 to hit, range 80/320 ft., 1 target. Hit: 6 (1d6 +2) piercing damage.

Redirect Attack. When a creature the skaven can see targets it with an attack, the skaven chooses another skaven within 5ft of it. The two skaven swap places and the chosen skaven becoms the target instead