Artificial Evolution by paying ({U} magic symbol) , replacing all instances of the word "Human" on
Werewolf Pack Leader with "Brushwagg".
Activate
Amoeboid Changeling's first activated ability by tapping it, giving
Werewolf Pack Leader all creature types until end of turn.
Activate
Werewolf Pack Leader's last ability by paying ({3} magic symbol) ({G} magic symbol) , making it a 5/3 trample creature that isn't a Brushwagg until end of turn.
Cast
Embiggen by paying ({G} magic symbol) , giving
Werewolf Pack Leader at least +264/+264 until end of turn.