Black Staff of Ahriman

Equipped creature gets +1/+1 for each 15th
Legion Sorcerer you control and has Reach.
Equipped creature gains "{t}:Pay {x} mana and
X/2 life, rounded up. Deal X damage to target
creature. If that creature dies, create X/2
Rubricae Tokens, rounded down.
Equip {3}: If Ahzek Ahriman is on the battlefield,
you must pay {0} and equip this card to him.