Eikar Tur, King Choir

+2: Create {x} 1/1 white Choir tokens, where x is the amount of difference between you and target opponent
-4: Destroy up to 3 target nonland non-choir permanents, then put that many +1/+1 counters on target choir creature
-10: You get an emblem that has "All choir creatures you control get +x/+x where x is the amount of choir cards you control"