Complex sentence: The speeds that the White Rabbit can reach during a full transformation allow it to put massive amounts of kinetic energy behind any attack it makes, able to reach supersonic speeds almost instantly and offensively utilize the supersonic shockwaves generated to severely damage or destroy opponents.
Split into simpler sentences: The speeds that the White Rabbit can reach during a full transformation allow it to put massive amounts of kinetic energy behind any attack it makes. In addition to the raw speed accessible to the White Rabbit, he is able to reach supersonic speeds almost instantly and offensively utilize the supersonic shockwaves generated to severely damage or destroy opponents.