Battle for Topia

When Battle for Topia enters the battlefield destroy all creatures. Each player creates a 1/1 Human, a 2/2 white Horseman with haste and horsemanship, a 1/1 Archer with reach, a 0/6 Human with defender, and a 6/1 Construct with firststrike.
Whenever a creature enters the battlefield destroy all non-human, Horseman, Archer, and Construct creatures.