Michigan Compiled Laws, Chapter 600. Revised Judicature Act of 1961 § 600.223

(1) to prescribe the forms of all process to be issued by courts of record,

(2) to prescribe the practices and procedure in the supreme court and other courts of record concerning:

(3) to prescribe in which cases the circuit court may grant orders to stay proceedings in matters pending in the circuit courts or another inferior court and to prescribe the terms and conditions upon which the orders shall be granted and the effect the orders will have,

(4) to abolish, as far as practicable, distinctions between law and equity.